JEE Mains · Physics · STD 11 - 5. work,energy,power and collision
Sand is being dropped from a stationary dropper at a rate of \(0.5\,kgs ^{-1}\) on a conveyor belt moving with a velocity of \(5\,ms ^{-1}\). The 10.Power needed to keep belt moving with the same velocity will be.
- A \(1.25\)
- B \(2.5\)
- C \(6.25\)
- D \(12.5\)
Answer & Solution
Correct Answer
(D) \(12.5\)
Step-by-step Solution
Detailed explanation
Thrust \(=\lambda V_{\text {rel }}\) \(=2.5\,N\) Now, 10.Power \(= F \times V =12.5\,W\)
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