Question

A 31 kg object is experiencing a net force of 25 N while traveling in a circle of radius 25m. What is its velocity?

Answer 1

4.5m/s

Step-by-step explanation:

Given parameters:

Mass of object = 31kg

Net force = 25N

radius = 25m

Unknown:

Velocity = ?

Solution:

To solve this problem, we must understand that the net force here is a centripetal force.

F =
`(mv^(2) )/(r)`

F is the centripetal force

m is the mass

v is the velocity

m is the mass

25 =
`(31 x v^(2) )/(25)`

31v² = 625

v² = 20.2

v = 4.5m/s