a body of mass 10kg is raised from certain depth .by the time it is raised by 10m,if its velocity is 2m/s, work done during this time is,
Answers
Answered by
89
Total Work done(W)= (work done to change in PE of body)+(work done in providing KE to body).
=>W= (10×g×10)+[(1/2)×10×2×2]
(where g=acceleration due to gravity= 9.8m/s^2)
=>W=1000J
=>W= (10×g×10)+[(1/2)×10×2×2]
(where g=acceleration due to gravity= 9.8m/s^2)
=>W=1000J
Answered by
21
Answer:
Ans : 1000J
Explanation:
Mass:40kg
Lenght :10m
Velosity:2m/s-2
g:9.8m/s
W=?
Toyalo energy=Potential energy + kinetic energy
=mgl+1/2mv2l
=10*99.8*10+1/2*40*4
=1000J
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