# Search results

1. ### Newtons Law

ok i tried using x=VoXT + 1/2axt^2 but i dont think it applies because there is no time involved in part a
2. ### Newtons Law

please i have no idea where to start and what equation to use!
3. ### Newtons Law

Homework Statement An object with a mass of 4.0 kg travels with a constant velocity of 4.8 m/s northward. It is then acted on by a force of 6.5 N in the direction of motion and a force of 9.5 N to the south, both of which continue even after the mass comes momentarily to rest. (a) How...
4. ### Will you check my work?

Homework Statement A left-handed pitcher at sea level throws a baseball at a 45o angle with an initial speed of 19 m/s. The time for the ball to reach its highest point can be found from the data and known constants using which equations? Solve for the time. Homework Equations V^2 =...
5. ### Frictionless Slide (mastering Physics)

ya i tried both sin and cos and timesed them by the gravity, and then i divided it by the length and part a was still wrong?
6. ### Frictionless Slide (mastering Physics)

ok obvisouly im doing something wrong here, does anyone have a list of formulas for projectile motion. I dont seem to have any in the text book, and mastering physics is just giving me questions, no formulas.
7. ### Frictionless Slide (mastering Physics)

ok for the acceleration i took the cos(37)*9.8 and came up with 7.82, is this even close to what i need to be doing?
8. ### Frictionless Slide (mastering Physics)

thanks for the speedy reply, i will work on this for a bit now and see what i come up with
9. ### Frictionless Slide (mastering Physics)

That can be determined by the angle with respect to gravity How do i know when to use sin cos or tan, and what one would i use here?
10. ### Frictionless Slide (mastering Physics)

Homework Statement A child slides down a frictionless 3.1 -long playground slide tilted upward at an angle of 37. At the end of the slide, there is an additional section that curves so that the child is launched off the end of the slide horizontally. Part A How fast is the child moving at...
11. ### Homework Due Tonight (jan 27)

ya i did read that, i just needed someone to explain it in away that makes sense to me. I went to my lab today and i am obviously strugglin with this subject so im going to a study group that meets every week. I really do appreciate your guy's help, i just am not the kind of person to figure out...
12. ### Homework Due Tonight (jan 27)

see the thing that got me was the time fall starts, i didnt know if i plugged in the time threw the window or solved for it. Because i was also looking for height
13. ### Homework Due Tonight (jan 27)

well you could have broke it down a little better and explained what i needed to do instead of thowing a formula at me and sayin use it
14. ### Homework Due Tonight (jan 27)

wow this is a great forum, i really appreciate all the replys im getting and the help! You guys are great!
15. ### Introduction to Physics HELP. I AM LOST

dont worry i feel the same way
16. ### Homework Due Tonight (jan 27)

AVG Speed = 1.35/.210 = 6.43 m/s a = (vm - vt)/t 9.81 = (6.43 - vt)/(0.105) vt = 5.40 m/s 5.402 = 0 2 + 2(9.81)d d = 1.49 m Object was released 1.49 m above window. is this correct?
17. ### Homework Due Tonight (jan 27)

i guess it would help if i found the avg speed which is 1.35/.210 = 6.43m/s
18. ### Homework Due Tonight (jan 27)

am i that lost that nobody can help me?
19. ### Homework Due Tonight (jan 27)

ok i cam up with this. Will this equation work? D=Vi *t +1/2 * a * t2 0*.210+1/2*9.8*?
20. ### Homework Due Tonight (jan 27)

ok i may be stupid or something, this is suppose to be easy and i ve been working on it for like a hour please help
21. ### Homework Due Tonight (jan 27)

ok heres what im trying to think of in my head. Basically the question states that it takes a object .210seconds to cover 1.35meters. So with that given information i have to find what height the object falls from. Well a given is the objects acceleration is 9.8m/s squared
22. ### Homework Due Tonight (jan 27)

ok then can you explain it in a different way i have no idead how to find t1
23. ### Homework Due Tonight (jan 27)

how do i go about finding what t1 is?
24. ### Homework Due Tonight (jan 27)

im still lost sorry i must just be stupid

26. ### Homework Due Tonight (jan 27)

V= 9.8m/s Squared *.210 gives me 2.058m/s squared thats using the forumula V=gt is this correct for the initial velocity?
27. ### Homework Due Tonight (jan 27)

so my equation should look like this x=1/2 * 9.8m/s * .210 Squared
28. ### Homework Due Tonight (jan 27)

what is the g in the equation? im guessing x would be the height and t is the time
29. ### Homework Due Tonight (jan 27)

Im sorry that i cant really provide any work, im definately not trying to freeload, and i do want to learn how to do this stuff. I just need someone to walk me through it.
30. ### Homework Due Tonight (jan 27)

Homework Statement Hi im just starting a college physics class, all the work is pretty much online and im am having a terrible time learning all the equations and things of that nature. The question is You are standing by your living room window when an object falls vertically downward in...