Question

a small toy car moves around circular track of radius 4 metres that all makes one revolution in 10 seconds then find the centripetal force exerted by the track exerted mass of the car is 200 grams​

Answer 1

SOLUTION.

If a body covering angle ∆ in t seconds than the angular velocity of the body can be written as...

w = ∆/t

So according to question angular velocity of the toy car is...

Angle cover in one revolution = 2π

Time = 10sec

Angular velocity = 2π/10

Angular velocity (w) = π/5

Mass of the body = 0.2kg

Radius of the circle = 4m

Force of centripetal = mw²R

Force of centripetal = (0.2)(π/5)²(4)

Force = 0.52N

Answer 2

Explanation:

hope that's help you!!!