Question

A mechanic strikes a nail with the hammer moving with a velocity of 20m/s.
The hammer comes at rest after 0.02 seconds. What is the acceleration of nail ?

Answer 1

Answer:

Answer as follow

Explanation:

Assuming constant acceleration, then since the velocity changed by -20m/s in .02 seconds,

a = v/t = -20m/s / .02s = -1000 m/s^2

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