What is Initial height: Definition and 23 Discussions

In a written or published work, an initial or drop cap is a letter at the beginning of a word, a chapter, or a paragraph that is larger than the rest of the text. The word is derived from the Latin initialis, which means standing at the beginning. An initial is often several lines in height and in older boscene are known as "inhabited" initials. Certain important initials, such as the Beatus initial or "B" of Beatus vir... at the opening of Psalm 1 at the start of a vulgate Latin. These specific initials, in an illuminated manuscript, were also called initiumsIn the present, the word initial commonly refers to the first letter of any word or name, the latter normally capitalized in English usage and is generally that of a first given name or a middle one or ones.

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  1. A

    Projectile Motion with Unknown Initial Height

    First, I tried solving for the total time of flight, which I got as 100 = 5cos25*t --> t=22 s Since we know the height at which the object lands, but not at which it is launched, I tried setting up the equation as: yf = 40 - y0 = y0 + 5sin25*(22) - 1/2(9.8)(22)^2 However, I got y0 = 1183 m...
  2. ju456one

    Projectile Motion: Pitcher throwing a ball to a catcher

    Homework Statement determine the acute angle (in radians) of appropriate elevation in the throwing of a ball, if the initial velocity is 20 m / s, g=9.81 m/s^2 and the distance in x is 40m. The ball leaves the hand of the pitcher with an elevation equal to 1.8m and the catcher receives it at...
  3. Justas

    Vertical throw initial height 15 time 3s until hiting ground

    Homework Statement Height - 15m Time when ball hits the ground after upward throw 3 s. I have been trying to find intitial speed with these formulas : d=v_initial*t-0.5*g*t^2 and v=v_initial+g*t Please help to understand how to find initial speed and after what time the ball is at 15m height...
  4. tink7718

    Initial height of a bouncing ball and energy lost

    I am doing a lab in my senior physics class (IB HL Physics 3-4) and I am very confused about a relationship that I found. For my experiment I dropped a racquetball from different heights and then used video analysis to find the height of the ball on its final bounce. I used this data to...
  5. RoboNerd

    Understanding why the initial height of one block is equal t

    Homework Statement A 20.0-kg block is connected to a 30.0-kg block by a string that passes over a light frictionless pulley. The 30.0-kg block is connected to a spring that has negligible mass and a force constant of 250 N/m. The spring is unstretched when the system is as shown in the figure...
  6. J

    Help with oblique motion question (initial height)

    Homework Statement How to calculate initial height (h) in an oblique motion? Data: initial velocity (v0) = 10 m/s angle (α) = 45º g = 10 m/s2 Variables: x - position in the x-axis y - position in the y axis r - range...
  7. C

    A dropped stone falls past a window, determine it's initial height

    Homework Statement A falling stone takes 0.33 s to travel past a window 2.2 m tall. From what height above the top of the window did the stone fall? Express your answer using two significant figures. Homework Equations Kinematic Equations ~ X= Vi (time) + .5gt^2 Vf^2 = Vi^2 + 2gxThe Attempt...
  8. M

    MHB Word problem: initial height of projectile

    A ball is thrown from a cliff. The path of the ball modeled by the equation h = -5t^2+ 5t + 210, where h is the height, in metres, of the ball above the ground, and t is the time, in seconds, after it is thrown. How high is the cliff? Not really sure how to do this problem. I know that one of...
  9. M

    A ball is dropped twice off the same initial height. trial one bounces

    a ball is dropped twice off the same initial height. trial one bounces back with a velocity of 3m/s and trial 2 bounces back with a velocity of 2m/s. the time the ball is in contact with the ground for trial 1 is 0.01s. are the impulses on the ball the same for both trials or is it less in trial 2?
  10. M

    Solving Projectile w/ Initial Height, Height Max, Horiz Dist.

    Hi everyone, I'm trying to design a formula that determines the launch velocity, launch angle, and time spent in the air for a projectile if only the initial launch height, maximum height reached, and total horizontal distance traveled before the projectile hits the ground are known. It's not...
  11. S

    Finding the initial height of a roller-coaster [HELP]

    Homework Statement Homework Equations PE = mgh KE = \frac{1}{2}mv^{2} W = ΔKE W = Fd The Attempt at a Solution g = 9.80m/s^{2} hi = ? hf = 20.0m PEi + KEi = PEf + KEf mghi = mghf Would you then cancel the masses out? If you did, the initial height would be 20.0m...
  12. A

    A rock is THROWN downward. What was the initial height?

    Homework Statement A rock is thrown downward from an unknown height above the ground with an initial speed of 27 m/s. It strikes the ground 7.1 s later. Determine the initial height of the rock above the ground. The acceleration of gravity is 9.8 m/s2. Answer in units of m. Homework...
  13. K

    Find initial height when velocity is given

    Homework Statement A flowerpot falls from the ledge of an apartment building. It takes .2 s for the pot to pass the 4 m window below. How far above the top of the window is the ledge from which the pot fell? (Neglect air resistance) Homework Equations y(t)=y0 + (voy)(t) - 1/2g(t^2)...
  14. D

    Projectiles: Hitting x and y with initial height given.

    Hi, we can determine the velocity to hit x and y point with angle of projection given. but can we do the same if the initial height of projection is given?
  15. M

    Initial speed and distance from initial height problem

    Homework Statement An entertainer juggles balls while doing other activities. In one act, she throws a ball vertically upward, and while it is in the air, she runs to and from a table 5.60 m away at a constant speed of 2.10 m, returning just in time to catch the falling ball. Homework...
  16. M

    Initial Velocity Given Distance, Angle, and Initial Height

    Homework Statement Given your assigned projectile launcher determine the muzzle velocity. angle of launcher = 45degrees distance to bottom of barrel = 25.6 cm distance traveled when fired = 119.2cm Ignore Air resistance Homework Equations I don't know where to start since I have...
  17. S

    Calculate velocity with initial height, range and angle

    Homework Statement My lab partner and I were to find the optimum angle a nerf gun could be fired at to provide the longest distance from the starting point. We also need to calculate the initial velocity of the projectile and the range and height the projectile should have reached for each...
  18. A

    Optimal Trajectory for a ball thrown WITH INITIAL HEIGHT

    A ball being thrown, ignoring drag or wind, has an initial height, initial velocity, and experiences the acceleration due to gravity. When a ball is launched from the ground, y_0 = zero, complementary angles (for example 20 and 70 degrees) will produce the same distance for the same initial...
  19. D

    Free Falling Object's Initial Height

    The problem reads: A freeley falling object requires 1.50s to travel the last 30.0 m before it hits the ground. From what height above the ground did it fall? If anyone can please help me with this problem, I would be very grateful. Thank you in advance for your time and effort helping me...
  20. C

    Find the Initial Height of a Falling Block

    Where do I start? A 10kg block being held at rest above the ground is released. The block begins to fall under only the effect of gravity. At the instant that the block is 2.0 meters above the ground, the speed of the block is 2.5m/sec. The block was initially released at a height of how many...
  21. S

    Calculating Initial Height for Marble to Roll Along Loop-the-Loop Track

    A small solid marble of mass m and radius r will roll without slipping along A loop-the-loop track, if it was released from rest somewhere on the straight section of track from what initial height h above the bottom of the track must the marble be released so that it is on the verge of leaving...
  22. A

    Proof of 5.875m Initial Height of Batted Ball

    :mad: h=height in m, of a batted baseball as a function of time t seconds since ball was hit h=-4.5t^2+13.5t+5.875 can someone tell me what is the physical significance of the 5.875 and prove it? I am thinking maybe this is the height at which the ball was hit but if this is true then how...
  23. M

    Ball rebounding to less than initial height

    Hi, I have a homework problem that's giving me a bit of trouble. I hope someone can help me out and verify whether I'm correct or not :) After falling from rest at a height of 30 meters, a 0.50 kilogram ball rebounds upward, reaching a height of 20 meters. If the contact between ball and...
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