AP EAMCET · PHYSICS · Work Power Energy
A ball of mass is dropped from a height above a sandy ground. On reaching the ground, it penetrates through a distance in sand and finally stops. The average resistance offered by the sand to oppose the motion is (acceleration due to gravity )
- A
- B
- C
- D
Answer & Solution
Correct Answer
(B)
Step-by-step Solution
Detailed explanation
Net displacement of the ball under the action of gravity is 10+1.5 m. According to work energy theorem, work done by all the forces on a sytem is equal to the change in kinetic energy of the system. Therefore,…
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