Alarge cylinder rolls along flat, level ground. because of substantial air resistance and varying amounts of friction, its speed decreases in a complicated way. its speed as a function of time is v = at2 + bt + c, where v is measured in m/s, t is never negative and is measured in s, a = - 2.00 m/s3, b = - 2.00 m/s2, and c = 12.0 m/s. how far does the cylinder move (in meters) from t = 0 s until it comes to rest?

An object thrown vertically upward from the surface of a celestial body at a velocity of 36 m/s reaches a height of sequalsminus0.9tsquaredplus36t meters in t seconds. a. determine the velocity v of the object after t seconds. b. when does the object reach its highest point? c. what is the height of the object at the highest point? d. when does the object strike the ground? e. with what velocity does the object strike the ground? f. on what intervals is the speed increasing?

A17,250 kg rocket is pushed with a thrust of 6,450,284 n. what is the acceleration of the rocket?

Ihave this 50 question test the layer of earth's atmosphere where atoms and molecules escape into space is referred to as the a) exosphere b) ionosphere. c) mesosphere d) thermosphere