Apolice car waits in hiding slightly off the highway. a speeding car is spotted by the police car doing 40 m/s. at the instant the speeding car passes the police car, the police car accelerates from rest at 4 m/s2 to catch the speeding car. how long does it take the police car to catch the speeding car

t = 20s

Explanation:

In order for the police car to capture the other car, both cars must travel the same length.

The distance traveled by the first vehicle is:

S = ^ Vt = 40t, where t represents the elapsed time and V the vehicle speed.

The distance traveled by the police car is:

S = at ^ 2/2 = 2t ^ 2, where t represents the elapsed time, a is the acceleration of the car.

As the distances traveled are equal:

40t = 2t ^ 2 in this way t = 20s

no sign of dia of fuel cell

report!

explanation:

physics means: "the branch of science concerned with the nature and properties of matter and energy. the subject matter of physics, distinguished from that of chemistry and biology, includes mechanics, heat, light and other radiation, sound, electricity, magnetism, and the structure of atoms."