2) A police car signals a motorcycle 100m meters away to stop. Since the motorcycle did not stop, after 3s the police car starts chasing the motorcycle with constant acceleration as shown above. After 9s they slow down until they come to a stop. v(m/s) police car motocycle 20m/s 3s 5s 9s 15s t(s) a) Find the acceleration of the police car b) Show that the speed of the police car at 9s is 60m/s c) Show that after 9s the police car is again 100m away from the motorcycle d) Find the average speed of the police car e) Find the final distance between the police car and motorcycle after 15s

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Instantaneous Power

Power is defined in physics as the amount of energy transmitted or transformed per unit time. The watt is the unit of electricity in the International System of Units, equivalent to one joule per second.