Homework+Assignment+1

=**Assignment #1 - Constant Acceleration Equations**= Due Wednesday, February 11

Solve questions on a seperate page. Assume constant acceleration for all questions.

1. A car traveling in a straight line has a velocity of +5.0 m/s. After 4.0 s, its velocity is now +8.0 m/s. What distance did the car travel?

2. A plane starting at rest travels 1.60 km, accelerating at +1.6 m/s2, and takes off. a. What was the velocity of the plane at takeoff? b. How long did it take to travel down the runway?

3. Bob steps into his dragster and accelerates uniformly from rest to a speed of 65 km/h in 12 s. Find out how far the dragster goes in kilometers.

4. A ball is used in an experiment to study constant acceleration. It starts out traveling +6.00 m/s, and after 20.5 s it is found to be 3.50 m BEHIND its starting point. What was the acceleration of the ball during this experiment?

5. In problem #4, at what time, if any, was the velocity of the ball 0.00 m/s?

6. At a stoplight, Sheila waits patiently for the light to turn green. As it does, an unmarked van blows by her at a constant speed of 26.2 m/s. Sheila steps down on her gas pedal and catches up to the van 12.6 s after the light turned green. In order to do this, what does Sheila’s acceleration have to be? (Hint: when Sheila catches up to the van, their displacements are the same.)

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