Question

An object of mass 0.5 kg is swung in uniform circular motion. The radius is 2 meters, and the force exerted is 4 N. Calculate the centripetal acceleration.

Answer 1

Answer:

8 m/s²

Explanation:

m = 0.5kg

r = 2m

F = 4 N

$f= \frac{ {mv}^{2} }{r}$

make v the subject

$v = \sqrt{( \frac{fr}{m}) }$

v = √(4×2)/0.5

v = √16

v = 4 m/s

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

a = 4²/2

a = 16/2

a = 8 m/s²