a stationary object is released from a point p at a distance 3r from the cntre of the moon which has radius R and mass M. calculate the speed of the opject on hitting the moon
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The sum of the potential energy of an object and its kinetic energy remain constant:
-GmM/3R + mVo^2 = −G mM/R + mV1^2
The object was stationary, so Vo = 0
Thus, we can find the speed of the object on hitting the moon.
−G M/3R = -G M/R + V1^2/2
V1^2/2 = 2GM/3R
v1 = 2 root GM/3R
-GmM/3R + mVo^2 = −G mM/R + mV1^2
The object was stationary, so Vo = 0
Thus, we can find the speed of the object on hitting the moon.
−G M/3R = -G M/R + V1^2/2
V1^2/2 = 2GM/3R
v1 = 2 root GM/3R
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