AP EAMCET · PHYSICS · Work Power Energy
An automatic gun fires 360 bullets per minute with a speed of \(360 \mathrm{~km} / \mathrm{h}\). If each bullet weighs \(20 \mathrm{~g}\), the power of the gun is
- A \(75 \mathrm{~W}\)
- B \(150 \mathrm{~W}\)
- C \(300 \mathrm{~W}\)
- D \(600 \mathrm{~W}\)
Answer & Solution
Correct Answer
(D) \(600 \mathrm{~W}\)
Step-by-step Solution
Detailed explanation
Speed of each bullet, \(v=360 \mathrm{~km} / \mathrm{h}\) \(=360 \times \frac{5}{18} \mathrm{~m} / \mathrm{s}=100 \mathrm{~m} / \mathrm{s}\) Number of bullets fired per minute, \(N=360\) Kinetic energy of 360 bullets, \(k^{\prime}=N \times\) kinetic energy of each bullet…
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