Question

A mass of 10 kg is revolving in a circle with a speed of 5 m/s. If the circle has a radius of 10 m, what centripetal force must be acting on the mass?

1) 5 N
2) 10 N
3) 20 N
4) 25 N

Answer 1

The centripetal force acting on the mass is 25 N.

Step-by-step explanation:

To calculate the centripetal force acting on the mass, we can use the equation:

F = m * v^2 / r

where F is the centripetal force, m is the mass, v is the velocity, and r is the radius.

Plugging in the given values:

F = 10 kg * (5 m/s)^2 / 10 m = 25 N

Therefore, the centripetal force acting on the mass is 25 N.