Question

A particle moves in a circle of radius 50 cm at
120 revolutions per minute. The acceleration of
particle (in m/s) is

$8\pi2$


$80\pi2$
$160\pi2$
$4\pi2$
​

Answer 1

Answer:

a= r omega ²

omega or angular velocity= 120/60×2π

2×2π

4π

a= 50/100m × (4π²)

1/2×16π²

=8π²

Answer 2

Answer:

8pi ^2

hope it will help u