# Physics 1AL ENERGY & ENERGY CONSERVATION Spring 2009

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Physics 1AL ENERGY & ENERGY CONSERVATION Spring 2009 1 ... Release the car from the top of the ramp and measure the range of the car. Record your measurement in your notebook. Repeat the experiment a few times to get the average and ... You release a frictionless cart at the top of each of the 2 ramps. On Ramp B, the cart is

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14. Suppose that you have a mass of 62.0 kg and that you walk to the top of a stairway which is h = 12.0 meters high and L= 15.0 meters deep. a. How much work will you have to do in walking to the top of the stairway? Ans. To get to the top of the stairs, W = F d=mgh = 62.0 kg . . 12 m =7291.2 J b.
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