Multiple choice

Consider the following statements:

  1. When a body is in circular motion, work is said to be done by centripetal force.
  2. The hand flour grinder is provided with a handle near its rim to reduce the centre of gravity.

Which of the given statements is/are incorrect?

  1. Only (1)

  2. Only (2)

  3. Both (1) & (2)

  4. Neither (1) nor (2)
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Statement (1) is wrong. When a body is in circular motion, no work is said to be done by centripetal force. Statement (2) is wrong. The hand flour grinder is provided with a handle near its rim, because the perpendicular distance of the line of action of the force from the axis of rotation will be maximum to get the largest turning effect.

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