A child is twirling a 0.0276-kg ball on a string in a horizontal circle whose radius is 0.125 m. The ball travels once around the circle in 0.596 s. (a) Determine the centripetal force acting on the ball. (b) If the speed is doubled, by what factor does the centripetal force increase?

Two satellites are in orbit around the earth at the same altitude (distance from center of earth), and have the same orbital period. But one satellite is twice as massive as the other satellite.   Which statement below is true?   The satellites have the same centripetal acceleration, but the more massive satellite has a larger centripetal force.   Neither object has a force acting on it because they're in space.   The centripetal forces are the same because they are moving the same.   The more massive satellite has a larger acceleration, and therefore a larger centripetal force.

A ball of mass m = 0.275 kg swings in a vertical circular path on a string L = 0.850 m long as shown. (a) What are the forces acting on the ball at any point on the path? (b) Draw force diagrams for the ball when it is at the bottom of the circle and when it is at the top. (c) If its speed is 5.20 m/s at the top of the circle, what is the tension in the string there? (d) If the string breaks when its tension exceeds 22.5 N, what is the maximum speed the ball can have at the bottom before that happens?

A car is moving on a banked curve at a speed v. A car is moving on a circular (radius = R) banked track (banking = B = 10° with respect to the horizontal) at a constant speed, v, in a circular path of radius R. A normal force, n, is exerted on the car from the track. The centripetal force is equal to the total normal force 0000 the radial component of the normal force the vertical component of the normal force none of the above