Consider two observers moving with respect to each other at a speed v along a straighline. They observe a block of mass m movig a distasnce l on a rough surface. The following quantities will be same as observed by the two observers
A
kinetic energy of the block t tiem t
B
work doen by friction
C
tota work done the block
D
accelertion of the block
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The correct Answer is:
D
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