# Find the acceleration due to gravity in a mine of depth 640m if the value at the surface is 9.800 ms-². The radius of the earth is 6400 km.

### Asked by yogendramishra0404 | 4th Nov, 2015, 07:46: AM

Expert Answer:

### The value of acceleration due to gravity at depth 'd' below the surface of the Earth is

### Answered by Yashvanti Jain | 4th Nov, 2015, 11:39: AM

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