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A ball is swinging on a swing like a simple pendulum. Its time period of oscillation is T and amplitude is A . When it is at the bottom of the swing, another ball of equal mass strikes and sticks to it while both of them are travelling in same direction. Choose the correct option(s).

Options

  1. AThe time period of oscillation remains same.
  2. BThe amplitude increases.
  3. CThe time period of oscillation increases.
  4. DThe time period of oscillation decreases.

Correct answer

B. The amplitude increases.

Step-by-step solution

Since time period of oscillation is indpenedent of mass of bob, thus remains same. Due to collision, K.E. at the mean position increases amplitude increases.

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