Question

A 0.5 kg ball moves in a circle that is 0.4 m in radius at a speed of 4.0 m/s. calculate it's centripetal acceleration @pooja195

Answer 1

ac=v^2/r is the formula right? because I have a velocity and radius.

Answer 2

ac = v2 / r

v = velocity
r = radius of circle
Distance around = Circumference
C = 2πr
T = time for one full cycle (period)

v = 2πr / T

Answer 3

I think its 40m/s^2

Answer 4

4.0(4.0)/0.4)=16/0.4=40 correct!!

Answer 5

then is the centripetal force 20?

Answer 6

yes

Answer 7

I think I'm getting the hang of this!! :D

Answer 8

YAY!!!!