A bowling ball collides with a pin and pushes the pin toward the right. Which describes the reaction force? The pin pushes the bowling ball toward the right.
The pin pushes the bowling ball toward the left.
The bowling ball pulls the pin toward the right.
The bowling ball pulls the pin toward the left.

What would be the strength of earth's gravitational field at a point where an 80.0 kg astronaut would experience a 80% reduction in weight

The man of mass m1 and the woman of mass m2 are standing on opposite ends of the platform of mass m0 which moves with negligible friction and is initially at rest with s = 0. the man and woman begin to approach each other. derive an expression for the displacement s of the platform when the two meet in terms of the displacement x1 of the man relative to the platform.

Describe the work performed by a ski lift in terms of kinetic and gravitational potential energy