- #1
ooohffff
- 74
- 1
This post does not use the homework template because it was originally posted in a non-homework forum.
Homework Statement
The question is: A 2 kg particle is moving in the positive x direction with the speed of 5 m/s. As it passes the origin, a force F = (30 N - 2N/s*t)i is applied to it. Where does the particle come to a stop?
Homework Equations
F=ma
W = integral F(x)dx
K=.5mv^2
The Attempt at a Solution
K1 = .5(2)(5)^2 = 25 J
K2 = .5(2)(0)^2 = 0 J
W = K2-K1= -25 J
My main issue is I'm not sure how to rewrite the force equation in terms of x, since I can use it in the formula Work = integral F(x)dx from 0 to x to solve for x.
Thanks!
Last edited: