TS EAMCET · Physics · Gravitation
A ball of mass moving with a speed of hits another ball of mass moving in the same direction with a speed of . If the kinetic energy of center of mass is , then the magnitude of is
- A
- B
- C
- D
Answer & Solution
Correct Answer
(C)
Step-by-step Solution
Detailed explanation
Given: Kinetic energy of the centre of mass K.E=43 Joule The velocity of centre of mass vcm is equal to the summation of the momentum of each ball to the total mass of the system. vcm=2×M+1×1M+1=2 M+1M+1 Now kinetic energy of the centre of mass is K.E=12mv2…
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