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Consider two observers moving with respe...

Consider two observers moving with respect to each other at a speed v along·a straight line. They observe a block of mass m moving a distance 1 on a rough surface. The following quantities will be same as observed by the observers

A

Total work done by all the forces

B

Work done by force of friction

C

Acceleration of the block

D

Kinetic energy of the block at a certain instant

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The correct Answer is:
C
Observes ar movng with respect to each other and hence due to different displacements observed they will observe different work and change in kinetic energy . Since there is no relative accleration between the observes hence they will observe same acceleration for the block .
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