Question

A scooter weighing 150 kg together with its rider moving at 36 km/hr is to take a turn of radius 30 m. What horizontal force on the scooter is needed to make the turn possible?

Answer 1

Given conditions ⇒

Velocity =  36 km/hr = 10 m/s.  Mass = 150 kg.

Radius = 30 m.

Horizontal Force needed must be equal to the centripetal force so that Scotter can take turn without sliding.

∴ Horizontal Force = mv²/r

= 150 × 100/30

= 500 N.

Hope it helps.