Force

What is the mass of the Earth?

If the distance between two masses is tripled, the gravitational force becomes:

Action and reaction forces:

Which of the following is true for a body in free fall?

The ratio of weight of an object on Earth to its weight on Moon is:

Lactometer works on the principle of:

The formula for pressure exerted by a liquid column is:

What is the effect on the value of 'g' at a height equal to the radius of Earth?

A piece of wood is floating in water. If we take it to the moon, it will:

Atmospheric pressure decreases with altitude because:

A ship moves from river water to sea water. It will:

What is the force between two masses of 100 kg each separated by 10 m?

The density of an object is 800 kg/m^3. In which of the following will it float?

In a vacuum, a feather and a coin are dropped from the same height. Which one hits the ground first?

The value of 'g' at the poles of the Earth is approximately:

Which force is responsible for holding the solar system together?

If the area of contact is halved, while keeping force constant, the pressure will:

What is the weight of a body of mass 1 kg on the surface of the Sun? (g_sun = 274 m/s^2)

What is the weight of an object of mass 50kg in a lift falling freely?

The unit of Upthrust in SI system is: