In this question, you will investigate the motion of a block of mass m = 4.0 kg

Question

In this question, you will investigate the motion of a block of mass m = 4.0 kg as it

travels from point A to point D. You will do this in three parts. The initial velocity

of the block is 4.5 m/s.

(a) Between A and B, the block is sliding on a surface whose coefficient of kinetic

friction is ?k = 0.10. If the distance between A and B is 2.5 m, what is the

velocity of the block at point B? (2 marks)

(b) The block slides up a frictionless ramp (between points B and C on the diagram).

If the block

Explanation / Answer

ANSWER:
K=1/2mv^2

K =(1/2)(4)(4.5)^2

K = 40.5

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