A 11000-kg truck moving east (E) at 9 m/s collides with a 3000-kg car moving in the opposite direction, west (W), at 45 m/s. If they stick together after the impact, how fast and, in what direction, will they be moving?

Please, show your work.

Acar traveling at 22 m/s starts to decelerate steadily. it comes to a complete stop in 15 seconds. what is it’s acceleration?

Question part points submissions used suppose that 2 j of work is needed to stretch a spring from its natural length of 26 cm to a length of 36 cm. (a) how much work is needed to stretch the spring from 28 cm to 32 cm? (round your answer to two decimal places.)

Need only answer if you think you know it