If we release a magnet held in our hand, it falls to the ground. The force responsible for this is :

A rectangular wooden block has length, breadth and height of 50 cm, 25 cm and10 cm, respectively. This wooden block is kept on ground in three different ways, turn by turn. Which of the following is the correct statement about the pressure exerted by this block on the ground?

Which of the following are contact forces ?

A. Friction B. Gravitational force

C. Magnetic force D. Muscular force

Which of the following force is utilized in reducing air pollution by removing dust, soot and fly-ash particles from the smoke coming out of chimneys of factories ?

The same force Facts on four different objects having the areas given below, one by one. In which case the pressure exerted will be the maximum?