Question 1:(adsbygoogle = window.adsbygoogle || []).push({});

A ball is dropped from the top of a building and it strikes the ground with a speed of v m/s. From ground level, a second ball is thrown straight upward with the same initial speed of v m/s at the same instant that the first ball is dropped. Ignoring air resistance, determine at what height above the ground the two balls will pass.

Question 2:

A cab driver picks up a customer and delivers her 2.0km away after driving along a striaght route. In making the trip, the driver accelerates uniformly to the speed limit and upon reaching it, decelerates uniformly immediately. The magnitude of the deceleration is three times the magnitude of the acceleration. Calculate the distance travelled during the acceleration and deceleration phases of the trip.

Question 3:

A vehicle spped trap is set up with pressure activiated strips across the highway, 110 meters apart. a car is diring along at 33m/s in a area where the speed limit is 21m/s. At the instant the vehicle activates the first strip, the driver begins slowing down uniformly. What is the minimum deceleration need in order that the average speed of the vehicle between the strips does not exceed the speed limit.

I have no idea on how to start on these problems... so i have tried it, but i can't get a clear idea to begin with.

Thanks.

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# Homework Help: How would i derive the equation?

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