Homework Help: Physics - URGENT

Posted by Mariya on Sunday, March 10, 2013 at 1:43am.

A car is speeding at constant velocity of 30ms-1 in an 80kmh-1 zone as it passes a stationary police motorcycle hiding. The motorcycle starts to accelerate at 5ms-2 at the same instant the car passes it and continues for 8 seconds. It then stops accelerating and maintains its speed until it catches the car.
a) How long does it take for the motorcycle to catch up to the car?
b) How far did the motorcycle travel before catching up to the car?

Please explain how you got the answer

Physics - URGENT - Jill, Sunday, March 10, 2013 at 1:48am
The distance the motorcycle and the car go is the same. So set up an equation for the distance the motorcycle goes and it will equal the car's accelerating distance and constant distance. You can use d=rt for the constant portions.
Physics - URGENT - Mariya, Sunday, March 10, 2013 at 1:51am
thanks :)

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