Calculate the force of friction that keeps an 80-kg person sitting on the edge of a horizontal rotating platform when the person

Question

3 years ago

11

sits 2 m from the center of the platform and has a tangential speed of 3 m/s.

1 answer:

Lilit [14] · Answer 1 · 2022-02-13T02:56:50+03:00

Answer:

360N

Explanation:

The frictional force = centripetal force = mass * centripetal acceleration = ma

Since centripetal acceleration = V^2/ r

Frictional force = mv^2 / r

Substitute the values of m = 80kg, radius = 2m and tangential speed = 3m/s

Frictional force = 80 * (3)^2/ 2 = 360N