I need help getting part c. Can someone please explain how to get the speed when

Question

I need help getting part c. Can someone please explain how to get the speed when it reaches the bottom of the incline?

A block slides down a frictionless plane having an inclination of 6 12.5°. The block starts from rest at the top, and the length of the incline is 3.00 m (a) Draw a free-body diagram of the block Choose File no file selected C:akepath 20170130-152913 resized jpg Score: 4.16 out of 4.16 Comment: (b) Find the acceleration of the block. m/s2 down the incline 2.12 (c) Find its speed when it reaches the bottom of the incline. 2.99 x You need to return to the constant acceleration equations to solve this part of the problem. m/s

Explanation / Answer

For part C,

from kinematic equation

Vf^2 = Vi^2 + 2*a*del X

at the top,initial velocity Vi = 0 m/s

Vf^2 = 0 +2*2.12 m/s^2 * 3m

Vf = sqrt (2*2.12 m/s^2 * 3 m)

= 3.56 m/s

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