Question

Two asteroids in space that are near each other experience a force of 5,107 N due to the gravitational force between them.  If their positioning was changed so that they were spaced 2 times their original distance apart, what would the new force of attraction between them be?

A Ferris wheel at a carnival has a radius of 12 m and turns so that the speed of the riders is 4.9 m/s. What is the magnitude of the centripetal acceleration that the riders experience?

9.9 J of work is done to push a 850-g puck across a frictionless, icy surface. If the puck had initially been at rest, what speed will it have after this work has been done?

A spring with a constant of 1,276 N/m is being used to launch a 0.41-kg mass up a frictionless incline. If the spring is compressed by 0.15 m, what is the maximum height up the incline the mass will reach?

During a collision, a 2000-kg car experiences an impulse of 564 N·s.  What is the change in momentum of the car?

A 0.7-kg object is in a collision where it experiences a 4 N·s impulse.  If the initial velocity of the object was -3 m/s, what will the final velocity of the object be after the collision?

Answer 1