A child rides a scooter in a circular path with a radius of 3.0 m. The tangential speed of the bicycle is 3.0 m/s. The mass of the bicycle and the child is 45 kg. a) What is the size of the bicycle's centripetal acceleration? b) What is the size of the centripetal force ? b) What provides the centripetal force on the scooter?

A child whirls a toy plane around in a circle of radius 60cm. She notices it takes 10s to make 12 complete rotations. Calculate: 1) The speed 2) The centripetal acceleration 3) The frequency of rotation 4) The period of rotation 5) The net force on the toy if the toy has a mass of 500g. 6) What force is responsible for the keeping the toy in rotation?

A father fashions a swing for his children out of a long rope that he fastens to the limb of a tall tree. As one of the children swings from this rope that is 6.10 m long, his tangential speed at the bottom of the swing is 7.05 m/s. (a) What is the centripetal acceleration, in m/s?, of the child at the bottom of the swing? Consider the relationship between angular speed, tangential speed, and centripetal acceleration. m/s?

It has been suggested that rotating cylinders about 11.0 mi long and 3.63 mi in diameter be placed in space and used as colonies. What angular speed must such a cylinder have so that the centripetal acceleration at its surface equals the free-fall acceleration on Earth? rad/s