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Assume that the tunnel is dug across the earth (radius=R) passing through the centre. Find the time a particle takes to cover the length of the tunnel if (a) it is projected into the tunnel with a speed root gR (b) it is released from a height R above the tunnel (c) it is thrown vertically upward along the length of tunnel with a speed of root gR

Assume that the tunnel is dug across the earth (radius=R) passing through the centre. Find the time a particle takes to cover the length of the tunnel  if 


(a) it is projected into the tunnel with a speed root gR


(b) it is released from a height R above the tunnel 


(c) it is thrown vertically upward along the length of tunnel with a speed of root gR

Grade:9

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