Discuss how a ballistic pendulum is used to find the velocity of a bullet.

Discuss how adaptation is related to evolution.

Discuss how displacement is represented on a velocity - time graph.

A bullet, moving with a velocity of 200 "m.s"^(-1) can just go through a 4 cm thick plank. What should be the velocity of a bullet for just going through a 10 cm thick identical plank?

A bullet of mass 10 g moving with velocity v becomes embedded in a ballistic pendulum of mass 2kg. The pendulum rises to a height of 10 cm. Find velocity of bullet and energy lost in collision.

We know that the velocity of a gas molecule is approximately equal to the velocity of a rifle bullet,Yet,a gas molecule spends much longer time than a bullet does to travel equal distance Explain.

Two lead bullets of equal mass top after head-on Collison and reach their melting point due to the heat generated. The temperature of the bullets before collision was 35^(@)C . Find the relative velocity of the bullets before collision. Specific heat of lead = 0.03 cal cdot g^(-1) cdot^(@)C^(-1) , melting point of lead = 335^(@)C, J = 4.18 xx 10^(7) erg cdot cal^(-1) .

The instrument used to measure wind velocity is