Suppose you are performing the downhill run ofthe experiment you did this week,

Question

Suppose you are performing the downhill run ofthe experiment you did this week, what is the energy ratio(Ef/Ei) of a system on Ganymede that hasa final velocity of 996.9 cm/s, initial velocity of 8.8 m/s, and aheight of 0.0748 km. Assume that the gravity on Ganymede is1.428 m/s2.

i have no clue where to even start. Suppose you are performing the downhill run ofthe experiment you did this week, what is the energy ratio(Ef/Ei) of a system on Ganymede that hasa final velocity of 996.9 cm/s, initial velocity of 8.8 m/s, and aheight of 0.0748 km. Assume that the gravity on Ganymede is1.428 m/s2.

Explanation / Answer

   Initialspeed   vi   =   8.8   m/s    Finalspeed   vf   =   996.9   cm/s                               =   9.969   m/s    initialheight   h   =   0.0748   km                            =   74.8   m    finalheight   H   =   0    total energy   E   =   k.e.   +   p.e.                               =   (1/2)* m * v2   +   m * g *h)                               =   m* ( 0.5 * v2   +   g *h)    Initialenergy   Ei   =   m* ( 0.5 * 8.82   +   9.8 *74.8)                               =   771.75* m    Finalenergy   Ef   =   m* (0.5 * 9.9692   +   9.8* 0)                               =   49.69* m    requiredratio      Ef /Ei   =   49.69 * m /771.75 * m                                           =   0.0644

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