AP PHYSICS - CONS. OF ENERGY?

Posted on 2015-12-02 07:29:00 in Physics by TIALZIK

LeBron has a mass of 62 kg. He slides down a 3.1 m slide and is traveling at 6.0 m/s when he reaches the bottom, how much energy was lost?

A car accelerates from 7.3 m/s to 14.6 m/s over a 11.3 m stretch of road. How much force is exerted on the car if it has a mass of 1350 kg?

Erica is carrying a stack of books that has a mass of 13 kg. If she carries them up a flight of stairs with a height of 7 m, how much work has she done?

Linda is pulling a kitchen sink across the ground. If she is exerting a force of 147 N for 13 m and is pulling at a 22° angle, how much work is she doing?

A force of 1330 N is exerted on a 1100 kg car over a 12.3 m distance. If the car was traveling at 3.5 m/s before, the force was exerted,

a. how fast is it traveling after?

b. If everything else was the same, how much force would it take to get a1950 kg car to reach the same speed?

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