Engineers are designing a system by which a falling mass m imparts kinetic energ

Question

Engineers are designing a system by which a falling mass m imparts kinetic energy to a rotating uniform drum to which it is attached by thin, very light wire wrapped around the rim of the drum (the figure (Figure 1)). the re is no appreciable friction in the axle of the drum, and everything starts from rest. This system is being tested on earth, but it is to be used on Mars, where the acceleration due to If the system is operated on Mars, through what distance would the 16. 0-kg mass have to fall to give the same amount of kinetic energy to the drum? How fast would the 16. 0-kg mass be moving on Mars just as the drum gained 200. 0 J of kinetic energy?

Explanation / Answer

gmars=3.71 m/s^2 A.. k.e=mh(gmars) h=k.e./m*gmars B. 200=1/2 *16*v^2 v=5 m/s

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