WBCS.LIVE practice question

A person on a swing stands up. The time period of the swing will be -

Solve this multiple-choice question and check the correct answer with its explanation below.

Answer options

  1. increase
  2. decrease
  3. remain the same
  4. become zero

Correct answer and explanation

Correct answer: decrease

Explanation: āœ… Correct Answer: B) decrease šŸ“š Explanation: When a person on a moving swing stands up, their center of gravity rises, which effectively shortens the distance from the pivot point to the center of mass. According to the laws of physics, the time period of a pendulum is directly proportional to the square root of its length. Since the effective length of the swing decreases, the time period of the oscillation will also decrease. This causes the swing to move back and forth more rapidly.