1) An unmarked police car, traveling a constant 95 km h , is passed by a...

1) An unmarked police car, traveling a constant 95 km h , is passed by a speeder traveling 145 km h . Precisely 1.00 s after the speeder passes, the policeman steps on the accelerator. If the police car’s acceleration is 2.00 fracms2 , how much time elapses after 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. If the police car accelerates uniformly as given above, and overtakes the 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 a vertical spring anchored at its lower end to the floor. If the spring constant is 32 N cm , how far to the is the spring compressed?

(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 of 10.32 × 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 s 2 .

Expert Solution

genius_generous answered 2 years ago

An unmarked police car traveling a constant 95 km/hr is passed by a speeder traveling 135...

An unmarked police car traveling a constant 95 km/hr is passed by a speeder traveling 135 km/hr. Precisely 1.00 s after the speeder passes, the police officer steps on the accelerator; if the police car’s acceleration is 2.00 m/s2 , how much time passes before the police car overtakes the speeder (assumed moving at constant speed)?

An unmarked police car traveling a constant 80.0 km/h is passed by a speeder traveling 135...

An unmarked police car traveling a constant 80.0 km/h is passed by a speeder traveling 135 km/h . Precisely 2.00 s after the speeder passes, the police officer steps on the accelerator; if the police car's acceleration is 1.60 m/s2 , how much time passes before the police car overtakes the speeder after the speeder passes (assumed moving at constant speed)?

An unmarked police car traveling a constant 85 km/h is passed by a speeder traveling 139...

An unmarked police car traveling a constant 85 km/h is passed by a speeder traveling 139 km/h . Precisely 1.00 s after the speeder passes, the police officer steps on the accelerator; if the police car's acceleration is 2.40 m/s2 , how much time passes after the police car is passed by a speeder and before the police car overtakes the speeder (assumed moving at constant speed)?

An unmarked police car traveling a constant 80.0 km/h is passed by a speeder traveling 115...

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