PHYSICS ACCELERATION HOMEWORK HELP?

Posted on 2015-09-23 06:45:00 in Physics by WILLIOM

1. a woman on a motorcycle moving uniformly at a rate of 60 m/s passes a truck at rest. At the instant the motorcycle passes the truck, the truck begins to accelerate at the rate of 4 m/s2. How long does it take the truck to catch up to the motorcycle? How far has the motorcycle traveled? What is the truck's speed at this point? Ans: 30 sec; 1800 m; 120 m/s

8. A mother pushes a baby stroller starting at a speed of 1.50 m/s and accelerates uniformly over a distance of 4.75 m. She attains a velocity of +2.18 m/s. What is the acceleration of the stroller? How long did it take for the stroller to reach this velocity? Ans: +0.26 m/s2; 2.62 s

9. Nathan accelerates his skateboard uniformly along a straight path from rest to 12.5 m/s in 2.5 s. What is Nathan's acceleration? What is Nathan's displacement during this time interval? What is Nathan's average velocity during this time interval? Ans: +5.0 m/s2; +16 m; +6.4 m/s

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