Recent content by madinsane

  1. M

    Get the area between two curvess

    Thank you. I realize my error now :)
  2. M

    Get the area between two curvess

    Okay, so here are the two functions, f(x)= sqrt(x+3) and g(x) = (x+3)/2 my first step was to get the intersection points and it came out to be x=1 or -3 Then I drew a graph and that told me that the function sqrt(x+3) is always above the other function on the entire interval. So then I did...
  3. M

    Forces and getting acceleration of two objects

    thanks, yes it was downhill :)
  4. M

    Forces, I want to get the magnitude of the acceleration for the following problem ple

    thanks!
  5. M

    Forces, I want to get the magnitude of the acceleration for the following problem ple

    Question says. Two objects of mass 2kg each are attached to each other by a massless string. One moves vertically and the other is moving on a frictionless surface horizontally and is being pulled the opposite direction by a force of 10 N at 60 degrees to the horizontal get the acceleration of...
  6. M

    Forces and getting acceleration of two objects

    Okay so their are two objects attached together by a massless string and a frictionless pulley. One of them is hanging vertically with mass 5kg the other one is on an incline that makes a 30 degrees angle with the horizontal and is of mass 10 the coefficient of kinetic friction of the incline on...
  7. M

    What Is the Correct Theta to Use in Calculating the Scalar Product of Vectors?

    Homework Statement Let vectorB= 5.45 m at 60°. Let C have the same magnitude as A and a direction angle greater than that of A by 25°. Let B·A = 32.4 m2 and B·C = 35.1 m2. Find the magnitude and direction of A . Homework Equations A·B=MagAxMagBcosθ The Attempt at a Solution I just...
  8. M

    For (c), at max height, v=0, so use v2 = u2 + 2as, just put u=20, a=-9.81, s=54

    Homework Statement a man throws a stone vertically upward with initial speed of 20 m/s from a building with height 54 m a)how long does the stone take to reach 40 m/s b)what is its velocity before it reaches the ground c) what is the magnitude of its acceleration at its maximum height...
  9. M

    Why did we assume it to be 45 degrees?

    just a silly typo sorry
  10. M

    Why did we assume it to be 45 degrees?

    thank you!
  11. M

    Why did we assume it to be 45 degrees?

    Homework Statement a motorist drives south at 20 m/s for 3 min, then turns west and travels west at 25m/s for 2 min, and finally travels n/w at 30 m/s for 1 min. for this 6 minute trip, find the net vector displacement Homework Equations The Attempt at a Solution distance 1...
  12. M

    Calculate Speed of Hawk's Shadow on Ground

    it was on radians! Thank you! I got the right answer!
  13. M

    Calculate Speed of Hawk's Shadow on Ground

    oops sorry!
  14. M

    Calculate Speed of Hawk's Shadow on Ground

    When the Sun is directly overhead, a hawk dives toward the ground with a constant velocity of 4.15 m/s at 54.5° below the horizontal. Calculate the speed of her shadow on the level ground.Homework Statement Homework Equations vxi=vicosθ vyi=visinθ (i think) The Attempt at a Solution...
  15. M

    Why Are Trigonometric Component Rules Reversed for Vectors?

    Homework Statement An airplane starting from airport A flies 300 km east, then 350 km at 30.0" west of north, and then 150 km north to arrive finally at airport B. The next day, another plane flies directly from A to B in a straight line. In what direction should the pilot travel in this...