Question

A body of mass 10kg moving in a circle of radius 2m, completes 3 circles in 3s. Use pi as 3.14. What is the magnitude of tangential velocity

Answer 1

Answer:

Given that

angular speed= ω=10rpm=

3

π

rad/sec

Tangential velocity:

v=ω∗r=

3

π

∗1=

3

π

m/sec

Centripetal acceleration:

a

c

=

r

v

2

=

9

π

2

m/sec

2

Centripetal force =m∗a

c

=

9

4π

2

=4.39N