A tunnel is dug along a chord of earth at a perpendicular distance \( \frac{R}{2} \) from the ea... VIDEO
A tunnel is dug along a chord of earth at a perpendicular distance \( \frac{R}{2} \) from the earths centre. The wall of the tunnel may be assumed to be frictionless. A particle is released from one end of the tunnel. The pressing force by the particle on the wall and the acceleration of the particle vary with \( x \) (distance of the particle from the centre) ashttps://bit.ly/YTAI_PWAP https://www.pw.live
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