Per NCERT Example 6.8, a 0.1 kg bullet is fired from a 5 kg gun with a force of 2 N. What is the initial acceleration of the GUN (recoil)?
A2 m/s²
B20 m/s²
CZero
D0.4 m/s² (= 2 N / 5 kg)
Answer & Solution
Correct answer: D. 0.4 m/s² (= 2 N / 5 kg)
Per NCERT Example 6.8, recoil force on gun = 2 N (Newton's Third Law). a_gun = 2/5 = 0.4 m/s². Bullet accelerates at 20 m/s² (= 2/0.1).
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