You now know that force isn't the cause of constant motion. Constant motion ... the gain in velocity each second is about twice that when pulled by one spring. These two trials are not really enough ...

Newton's laws of motion are the rock upon which classical physics have been built, but we may have been misinterpreting it ...

This is due to Newton’s first law: object will continue at a constant ... Force is applied by the vehicle’s brakes in opposite direction to motion. The force of friction between tyres and ...