(a) Determine the amount of work (in joules) that must be doneon a 104 kg payloa
ID: 1725775 • Letter: #
Question
(a) Determine the amount of work (in joules) that must be doneon a 104 kg payload to elevate it to aheight of 998 km above the Earth'ssurface.1 MJ
(b) Determine the amount of additional work that is required to putthe payload into circular orbit at this elevation.
2 J
He gave us a few hints/ guidelines for all our work thisweek...just in case it helps you...Thanks a lot Remember: a 1% error in a number that gets squared results ina 2% error and out of tolerance.
RE= 6375 km and g = 9.81 m/s2
Msol = 1.99 x 1030 kg
Make sure your answer is in the units right of answerbox. (a) Determine the amount of work (in joules) that must be doneon a 104 kg payload to elevate it to aheight of 998 km above the Earth'ssurface.
1 MJ
(b) Determine the amount of additional work that is required to putthe payload into circular orbit at this elevation.
2 J
He gave us a few hints/ guidelines for all our work thisweek...just in case it helps you...Thanks a lot Remember: a 1% error in a number that gets squared results ina 2% error and out of tolerance.
RE= 6375 km and g = 9.81 m/s2
Msol = 1.99 x 1030 kg
Make sure your answer is in the units right of answerbox.
Explanation / Answer
a) The amount of work done is W = mgh = (104 kg)(9.80 m/s2)(998*103m) = ----- J b) The amount of work done is W = (mv2/r)r = mv2 = 2mgh ( v = (2gh)) Substitute the values.
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