Digging Digging Day & Night
Classical Mechanics
Level
2
How many straight, thin, long tunnels, running from one surface to the other, can you dig through the Earth such that a body of mass 2kg can perform Simple Harmonic Motion in these tunnels with same time period?
Infinite
0
1
Finite
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1 solution
Time period is always2π√(R/g)[where R=radius of Earth & g=gravitational acceleration]