If an arrow is shot upward on mars with a speed of 52 m/s, its height in meters t seconds later is given by y = 52t − 1.86t2. (round your answers to two decimal places.) (a) find the average speed over the given time intervals.

In 1980, alfa romeo introduced the first system to smooth a rough idle caused by ignition and camshaft timing changes.

A1,700kg car is being used to give a 1,400kg car a push start by exerting a force of 140n the impulse on the smaller car during the 30.0s of contact is +670kg*m/s. what is the impulse of the smaller car on the larger car? -814 kg*m/s 0kg *m/s -670kg*m/s -550kg*m/s

Amira pulls a 3 pound wagon 4 feet. how much work has she done?