The separation between two masses is reduced to half. How is the magnitude of gravitational force between them affected?
A body of mass 500 g, initially at rest, is acted upon by a force which causes it to move a distance of 4 m in 2 s, Calculate the force applied.
A car of mass 480 kg moving at a speed of 54 km h-1 is stopped by applying brakes in 10 s . Calculate the force applied by the brakes .
How does the gravitational force of attraction between two masses depend on the distance between them?