A student swings a block of mass M in a horizontal circular path of radius R at a constant speed V.
1. What force acting on the block provides centripetal force?
1. weight
2. friction
3. tension
4. normal force
2. How would the centripetal force change if the block were to move with twice the speed?
1. twice as great
2. four times as great
3. one half as great
4. one fourth as great
3. When the block is at the position shown, the centripetal force is in which direction?
1. tangent to the circular path
2. toward the students hand
3. away from the students hand
4. along the circular path
4. the magnitude of the gravitational force of Earth on the moon is F, the magnitude of the gravitational force on Earth is
1. Smaller then F
2. Larger then F
3. Equal to F
