Question

A car drives at a constant speed of 3 m/s around a circle with radius 20 m. What is the centripetal acceleration of the car? A. 9.2 m/s2 B. 0.45 m/s2 C.0.15 m/s2 D. 6.7 m/s2​

Answer 1

Answer:

B. 0.45 m/s2

Explanation:

Answer 2

Centripetal acceleration of the car is 0.45 m/s²

Given that;

Constant speed of car = 3 m/s

Radius of car = 20 m

Find:

Centripetal acceleration of the car

Computation:

Centripetal acceleration = v² / r

Centripetal acceleration of the car = 3² / 20

Centripetal acceleration of the car = 9 / 20

Centripetal acceleration of the car = 0.45 m/s²

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