Physics Help Forum Basic motion question

 Kinematics and Dynamics Kinematics and Dynamics Physics Help Forum

 Jan 4th 2011, 11:01 PM #1 Junior Member   Join Date: Jan 2011 Posts: 1 Basic motion question I have no idea where to start with this very simple question. but the answer is 613 metres. A speeding motorbike travels past a stationary police car at a speed of 35m/s. The police car starts accelerating imediantly at 4m/s/s, and keeps accelerating until it has passed the bike. How far does the police travel before it overtakes the motorbike?
 Jan 5th 2011, 09:46 AM #2 Member   Join Date: Oct 2010 Location: Sri Lanka Posts: 63 take the distant the both vehicles went as S, time spent t apply S=ut for the motorbike apply S=ut +(1/2)at^2 for the car now you have two unknowns and two equations

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