6. According to the 1967 Journal of Experimental Biology paper “The Jump of the

Question

6. According to the 1967 Journal of Experimental Biology paper “The Jump of the Flea: A Study of the energetics and a model of the mechanism” by Bennet-Clark and Lucey, when a flea (mass 0.45 mg) jumps it accelerates from 0 to 1 m/s in approximately 0.85 ms. Determine its acceleration and power.

7. A 2000 kg car moving at 20 mph plows into the back of a 10,000 kg truck that is standing still. The wreckage sticks together after the crash. How fast is it moving?

8. Re-work the above problem, this time with the car standing still and the truck moving at 20 mph

Explanation / Answer

acceleration=1-0/0.85X10-3=1176.47m/sec2

power=0.45X10-6X9.8X 1

calculating we will get the answer

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