Question

An k
incline plane has 2 = 40.0º and : = 0.15. Starting from rest, how long will it take a
4.0 kg block to reach a speed of 12 m/s?

Answer 1

whats 0.15?

Answer 2

its uk

Answer 3

\[\mu_{k}?\]

Answer 4

ya

Answer 5

So lets draw a free body diagram first

Answer 6

And find the net force acting in the direction parallel to the incline.

Answer 7

So lets find the component of gravity that acts pulling the block down.

Answer 8

how do i do that