Which of the following statements about iron filings placed upon glass resting on top of a bar magnet is false?
1 answer:
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<u>Answer:</u> The correct answer is option B, C and E.
<u>Explanation:</u>
Centripetal acceleration is defined as the acceleration win which an object moves in a curved path. Formula for this acceleration is given by the equation:
where,
= centripetal acceleration
v = linear speed of the object
r = radius of the curved path
From the given options,
Option A: As, the golf ball is not moving in a curved path. Hence, it is not an example of centripetal acceleration.
Option B: As, a car is moving in a curved path. Hence, it is an example of centripetal acceleration.
Option C: As, a person is moving in a curved path. Hence, it is an example of centripetal acceleration.
Option D: As, a car is not moving in a curved path and is moving in a straight road. Hence, it is not an example of centripetal acceleration. The car is moving with zero acceleration because the direction of the car is not changing.
Option E: As, a bicyclist is moving in a curved path which is around the lake. Hence, it is an example of centripetal acceleration.