Question

A body of mass 0.4 kg is whirled in a horizontal
circle of radius 1 m with a constant speed of
5ms-1. Calculate
(a) the acceleration,
(b) the centripetal force acting on the body.
(c) the tension in the string,
(d) the angular speed of the string.
(e) the frequency of revolution,
O the greatest speed at which a body can be
whirled, if the string can withstand a tension
of 20N. (Force of gravity may be neglected).​

Answer 1

Answer:

Step-by-step explanation:

here, m = 0.4 kg; r = 2 m ; v = 10 m/s

angular speed = v/r

frequency of revolution = v/2*pi*r

Centripetal acceleration = (angular speed)^2 * r