You now know that force isn't the cause of constant motion. Constant motion happens by itself ... This time it looks like the gain in velocity each second is about twice that when pulled by one spring ...

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 ...

Newton's Second Law is concerned with unbalanced forces. Unbalanced forces produce acceleration. The greater the unbalanced force the greater the acceleration. This law is usually written as an ...