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[jgsp]

QUESTION...
A police officer is sitting at the side of the road on a motorbike with the engine running, monitoring motorist's speeds with a speed gun. The speedlimit is 100 km/h. A motorist passes the police officer at 120 km/h and as the car passes, the police officer starts from rest and chases the motorist with uniform accelaration of 3 m/s^2.
A) How long does it take for the police officer to reach the car?
B) What is the maximum speed of the police offficer?
C) What is the distance travvled by the two vehilcles, when the police officer reaches the car.
D) What distance does it take for the car to come to a stop?

[c.owen_s]

First... are we modelling them (car and officer) as particles?
Second.... when are we allowed to assume that the car starts decreasing its speed (since it eventually comes to a stop...) ?
Third.... Use the SUVAT equations to solve it yourself...
If in doubt of what they are... M1 (A-level maths) and wikipedia are a good source of reference

[SpikeSpencer]

QUESTION...
A police officer is sitting at the side of the road on a motorbike with the engine running, monitoring motorist's speeds with a speed gun. The speedlimit is 100 km/h. A motorist passes the police officer at 120 km/h and as the car passes, the police officer starts from rest and chases the motorist with uniform accelaration of 3 m/s^2.
A) How long does it take for the police officer to reach the car?
B) What is the maximum speed of the police offficer?
C) What is the distance travvled by the two vehilcles, when the police officer reaches the car.
D) What distance does it take for the car to come to a stop?

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