If a hollow pipe passes across the diameter of earth, then what changes takes place in the velocity and acceleration of a ball dropped in the pipe?

If a tunnel is dug along the diameter of the earth and a ball is dropped into the tunnel, it will have

The diameter of hollow cone is equal to the diameter of a spherical ball. If the ball is placed at the base of the cone, what portion of the ball will be outside the cone –

A tunnel is dug across the diameter of earth. A ball is released from the surface of Earth into the tunnel. The velocity of ball when it is at a distance (R )/(2) from centre of earth is (where R = radius of Earth and M = mass of Earth)

A car starts from rest and accelerates at 5 m/s^2 . At t = 4s, a ball is dropped out of a windown by a person sitting in the car. What is the velocity and acceleration of the ball at t = 6s?

Two water pipes of diameters 2 cm and 4 cm are connected with the main supply line. The velocity of flow of water in the pipe of 2 cm

There is a fixed semicircular ring of radius R lying in yz plane ,with centre at origin and it is uniformly charged with charge +Q A pipe is fixed along x-axis from the origin ,The inner surface is pipe is smooth and is made of insultaing material .A small ball of charge +q And mass m is projected in the pipe with negligible velocity ,ball can move in the pipe whole arrangement is in gravity free space. The maximum acceleration of the ball in the pipe is

A flexible pipe of length l connects two points A and B in space with an altitude difference h (Fig). A rope passed through the pipe is fixed at point A. Determine the initial acceleration a of the rope at the instant when it is released, neglecting the friction between the rope and the pipe walls.

Ram dropped a cricket ball of mass 700 g from the top of a tower and the ball takes 5 s to reach the ground. He then determined the maximum velocity of the body by taking acceleration of the ball as 10 m s ^(-2) find out the value of maximum velocity.

Raj dropped a cricket ball of mass 700 g from the top of a tower and the ball takes 5 s to reach the ground. He then determined the maximum velocity of the body by taking acceleration of the ball as 10 ms^(-2) find out the value of maximum velocity.