You throw an 8.75 g coin straight up into the air. The coin travels a distance of 776 cm upward. What was the initial speed of the coin when you released it? Give your answer in units of m/s
and assume the coin is in free fall while it is in the air.

Acar traveling at a constant speed of 22.0 m/s passes a trooper hidden behind a billboard. one second after the speeding car passes the billboard, the trooper sets off in chase with a constant acceleration of 3.50 m/s2. how long does it take the trooper to overtake the speeding car? solve this problem by a graphical method. on the same graph, plot position versus time for the car and the trooper.