A ball moves counterclockwise around a horizontal circle at constant speed. In the diagram, which arrow shows the ball's velocity at point P?

A puck moves clockwise around a circle at constant speed. In the diagram, which arrow shows the puck's acceleration at point P?

A bead moves clockwise around a circular wire at constant speed. In the diagram, which arrow shows the bead's velocity at point P?

A toy car moves counterclockwise around a circular track. In the diagram, which arrow shows the car's acceleration at point P?

A satellite is shown moving counterclockwise in a circular path. Which arrow shows its velocity at point P?

A stone moves clockwise at constant speed in a vertical circle. In the diagram, which arrow shows the stone's acceleration at point P?

A car rounds a flat curve at constant speed, and the center of the curve is to the left. Which drawn force supplies the center-directed net force?

A puck on a frictionless table is tied to a string and moves in a horizontal circle; the center is to the right. Which drawn force keeps the puck turning?

A coaster car is at the bottom of a vertical loop, so the center of the loop is upward. Which drawn force points toward the center there?

A conical pendulum bob moves in a horizontal circle, and the circle's center is to the left. Which drawn force has the inward component?

A rider is at the top of a Ferris wheel moving in a vertical circle, so the center is downward. Which drawn force points toward the center?

A rider is against the wall of a rotating cylinder, and the center of the circular path is to the left. Which drawn force supplies the inward force?

A cart moves in a circle of radius 3.0 m at a constant speed of 6.0 m/s. What is its centripetal acceleration?

A 0.50 kg stopper moves in a horizontal circle at 8.0 m/s with radius 2.0 m. What is the size of the net force on it?

A car travels around an 18 m radius curve at 12 m/s. What is the car's centripetal acceleration?

A 70 kg rider moves through a circular path of radius 10 m at 5.0 m/s. What net force is required toward the center?

A skateboarder turns along a circular path of radius 50 m at 25 m/s. What is the centripetal acceleration?

A 2.0 kg ball moves in a circle of radius 0.60 m at 3.0 m/s. What is the size of the inward net force?

A model airplane flies in a circle of radius 2.5 m at 7.5 m/s. What is its centripetal acceleration?

A 900 kg car rounds an 80 m radius curve at 20 m/s. What inward net force is needed?

A cyclist keeps the same 16 m turning radius but increases speed from 4.0 m/s to 8.0 m/s. What happens to centripetal acceleration?

A 1.5 kg object keeps the same speed but moves in a circle with twice the radius. What happens to the required inward force?

A ball moving counterclockwise is at the rightmost point of a circle when its string snaps. What path does it follow immediately after the snap?

A car on a flat circular curve suddenly reaches frictionless ice. Ignoring other horizontal forces, what is its motion just after losing friction?

If gravity on a satellite vanished at one instant, what path would the satellite begin to follow?

A marble moving clockwise leaves a circular track through a small opening at the bottom of the track. What direction is its initial path?

A coin rides on a rotating turntable until it reaches a waxed patch where friction is nearly zero. What best describes the coin's motion then?

A drop of water leaves the edge of a spinning bicycle tire. Ignoring air resistance for the first instant, which direction does it move?

A hockey puck is guided in a counterclockwise circle by a stick. At the leftmost point, the stick is lifted away. Which way does the puck initially move?

Why is an outward force not needed to explain a ball flying off when its string breaks?