An object hits the ground travelling at 40 ms-1 . It is brought to rest in 0.02 s . What is its acceleration ?
v=v0−at→a=v0/t=40/0.02=2000 (m/s2)v=v_0-at\to a=v_0/t=40/0.02=2000\ (m/s^2)v=v0−at→a=v0/t=40/0.02=2000 (m/s2) . Answer
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