1) An unmarked police car, traveling a constant 95 km h , ispassed by a speeder traveling 145 km h . Precisely 1.00 s after thespeeder passes, the policeman steps on the accelerator. If thepolice car’s acceleration is 2.00 fracms2 , how much time elapsesafter the police car is passed until it overtakes the speeder(assumed moving at constant speed)?
2) Assume in Problem 1 that the speeder’s speed is not known. Ifthe police car accelerates uniformly as given above, and overtakesthe speeder after 7.00 s, what was the speeder’s speed?
3) A mass of 3.2 kg is dropped from a height of 4.63 m above avertical spring anchored at its lower end to the floor. If thespring constant is 32 N cm , how far to the is the springcompressed?
(a)31.1 cm, (b) 34.5 cm, (c)36.8 cm , (d)45.9 cm.
4) A planet/moon has a mass of 82.91 × 1023 kg and a radius of10.32 × 106 m. What is g on the surface of this planet?
(a) 0.005 m s 2 , (b) 1.04 m s 2 , (c)4.67 m s 2 , (d) 5.19 m s2 .
