a body of mass 2kg is under the influence of a force. it's position changes with time according to the relation x=t^3/3 where x is in meters and t is in seconds. The work done by this force in first two seconds will be
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the work done should be 16 j
nikhilappana54p5vs22:
what should I differentiate?
do you know differentiation
yes
what should I differentiate?
differentiate x with respect to t
next
you get velocity and now you have velocity and mass apply the concept that change in kinetic energy is equal to work done
inital kinetic energy is when you put t=0 and final KE is when you put t=2
okay
thank you
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