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Work done, W = Force × Displacement
W = mass × accln. × displacement
So, here
mass = 2kg,
and in t= 2s, displacement,x = (2)×2 /3
x = 4/3 m
and , x= t^2 /3
=> dx/dt = 2t/3
=> accln. = d2x/ dt2 = 2/3 m/s2
So, Work done, W = 2× 2/3 × 4/3
W = 16/3 J
W = mass × accln. × displacement
So, here
mass = 2kg,
and in t= 2s, displacement,x = (2)×2 /3
x = 4/3 m
and , x= t^2 /3
=> dx/dt = 2t/3
=> accln. = d2x/ dt2 = 2/3 m/s2
So, Work done, W = 2× 2/3 × 4/3
W = 16/3 J
abhishek111109:
you welcome.
Sorry, there is calculation mistake in the end
answer should be 16/9
Answered by
1
hope this will help you.. :-)
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