A straight tuning is due into the earth as shows in figure at a distance `b` from its centre. A ball of mass `m` is dropped from one of its ends. The time it takes to each the other end is approximately

A straight tuning is due into the earth as shows in figure at a distance b from its centre. A ball of mass m is dropped from one of its ends. The time it takes to reach the other end is approximately

A body of mass m is moved from the centre of the earth to a infinite distance from its centre. The value of g will

A tunnel is dug in the earth across one of its diameter. Two masses m and 2m are dropped from the two ends of the tunel. The masses collide and stick each other. They perform SHM , the ampulitude of which is (R = radius of earth)

A tunnel is dug in the earth across one of its diameter. Two masses m and 2m are dropped from the two ends of the tunel. The masses collide and stick each other. They perform SHM , the ampulitude of which is (R = radius of earth)

If a straight tunnel is bored from the north pole to the south pole of the earth and if a body is dropped into that tunnel then what time will the body take to move from one end to the other end of the tunnel?

A satellite A of mass m is at a distance of r from the centre of the earth. Another satellite B of mass 2m is at distance of 2r from the earth's centre. Their time periode are in the ratio of

A satellite A of mass m is at a distance of r from the centre of the earth. Another satellite B of mass 2m is at distance of 2r from the earth's centre. Their time periode are in the ratio of

A tunnel is dug through the centre of the earth. Show that a body of mass m when dropped from rest from one end of the tunnel will execute simple harmonic motion.