Physics Past Questions and Answers

Calculate the escape velocity of a satellite launched from the earth's surface if the radius of the earth is 6.4x10<sup style='font-size: smaller;'>6</sup>m

An object of weight 80kg on earth is taken to a planet where acceleration due to gravity is one-third of its value on earth. The weight of the object on the planet is

One of the conditions necessary for an object to be in equilibrium when acted upon by a number of parallel forces is that the vector sum of the forces is

What happens when three coplanar non-parallel forces are in equilibrium?

An object of mass 20kg is released from a height of 10m above the ground level. The kinetic energy of the object just before it hits the ground is