DES M.

asked • 06/25/20

i need help please

An automobile travels along a straight road at 15.65 m/s through a 11.18 m/s speed zone. A police car observed the automobile. At the instant that the two vehicles are abreast of each other, the police car starts to pursue the automobile at a constant acceleration of 1.96 m/s2. The motorist noticed the police car in his rear view mirror 12 s after the police car started the pursuit and applied his brakes and decelerates at 3.05 m/s2. (Hint: The police will not go against the law.)

a) Find the total time required for the police car to overtake the automobile.


b) Find the total distance travelled by the police car while overtaking the automobile.

c) Find the speed of the police car at the time it overtakes the automobile.


d) Find the speed of the automobile at the time it was overtaken by the police car.


Steven W.

tutor
Does the hint ("the police will not go against the law") mean that the police car will not exceed 11.18 m/s? That seems odd, but we can work the problem either way,
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06/27/20

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