Work Energy And Power Question 64

Options:

A) 9 J

B) 6 J

C) 0 J

D) 3 J

Show Answer

Answer:

Correct Answer: C

Solution:

x=(t3)2

therefore v=dxdt=2(t3)

at t=0 ; v1=6m/s and at t=6sec , v2=6m/s

so, change in kinetic energy =W=12mv2212mv12=0



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