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Which has greater linear speed, a horse near the outside rail of a merry-go-round or a horse near the inside rail?

Which has greater angular speed, a horse near the outside rail of a merry-go-round or a horse near the inside rail?

Which of the following is NOT a unit of rotational speed?

What is the direction of the force that acts on clothes in the spin cycle of a washing machine?

A tin can whirled on the end of a string moves in a circle because

If you whirl a tin can on the end of a string and the string suddenly breaks, the can will

A ladybug rests on the bottom of a tin can that is being whirled horizontally on the end of a string. Since the ladybug, like the can, moves in a circle, there must be a force on it. What exerts this force?

"Centrifugal forces" are an apparent reality to observers in a reference frame that is

A person weighs less at the equator than at the poles. The reason for this has to do with the

As the rotational speed of a space habitat increases, the weight of people inside

A car travels in a circle with constant speed. The net force on the car

If Earth rotated more slowly about its axis, your weight would

To weigh less in the Northern Hemisphere, you should go

When a railroad train rounds a banked track, the centripetal force needed comes not from friction, but from the

The centripetal force exerted on stunt motorcyclist Biker Bob while riding on the inner vertical surface of a circular track is

Nellie Newton swings a rock into a circular path while holding an attached string overhead. The string makes a 45-degree angle to the vertical (comprising a "conical pendulum"). The centripetal force that holds the rock in its circular path is the

Stunt motorcyclist Biker Bob rides his bike inside a futuristic rotating space station-a giant rotating donut-shaped structure in space. The normal support force feels like weight to him. As he rides his bike in the same direction that the station rotates, the normal force

Stunt motorcyclist Biker Bob rides his bike inside a futuristic rotating space station—a giant rotating donut-shaped structure in space. The normal support force feels like weight to him. As he rides his bike in the opposite direction to the station’s rotation, the normal force

Suzie Spacewalker hovers in space beside a rotating space station in outer space. Both she and the center of mass of the space station are at relative rest. If the space station is in Earth orbit, then Suzie

A space habitat is designed so that the variation in g between a person's head and feet is less than 0.01 g. If the person is 2 m tall, then the radius of the habitat is

You sit at the outer rim of a Ferris wheel that rotates at 2 revolutions per minute (RPM). What would your rotational speed be if you were instead clinging to a position halfway from the center to the outer rim?

A vertical pole standing against a wall topples to the ground and the center of the pole has a speed of 13 m/s as it hits. With what speed does the far end of the pole hit the ground?

Tapered rims on railroad-train wheels enable a train to round curves without any wheel skidding. Consider a curve where the outer track is one part in 50 longer than the inner track. The wide part of the rim should have a diameter wider than the narrow part by at least one part in

At the outer edge of a rotating space habitat, 130 m from its center, the rotational acceleration is g. What is the rotational acceleration at a distance of 65 m from the center of the habitat?

The tangential speed at the outer rim of a Ferris wheel is 10 m/s. What is the tangential speed of a position half way from the center to the outer rim?