Two meteors in free space have masses of 10 kg and 15 kg respectively. find the position of their center of masss if they are 12 m apart.
Answers
Answer:
here your answer
Explanation:
0.2.
0.2
Miranda, a satellite of Uranus, is shown in part a of the figure below. It can be modeled as
a sphere of radius 242 km and mass 6.68 ×1019 kg.
• a) Find the free-fall acceleration on its surface.
• b) A cliff on Miranda is 5.00 km high. It appears on the limb at the 11 o’clock position
in part a of the figure above and is magnified in part b of the figure above. A devotee
of extreme sports runs horizontally off the top of the cliff at 7.70 m/s. For what time
interval is he in flight?
• c) How far from the base of the vertical cliff does he strike the icy surface of Miranda?
• d) What is his vector impact velocity?
a)
The free-fall acceleration on Miranda’s surface can be derived by equating the
gravitational force F = G
mM
r
2 and the free-fall force mg :
mg = G
mM
r
2
g = G
M
r
2
= 6.67 × 10−11 ×
6.68 × 1019
(242 × 103)
2
= 0.0761 m/s
2
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