Question

Which of the following are examples of centripetal acceleration? Check all that apply.

Answer 1

Answer: The correct answer is option B, C and E.

Explanation:

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:

$a_c=\frac{v^2}{r}$

where,

$a_c$ = 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.