A bullet moving with a speed 'v' can just penetrate two planks of equal thickness. Number of such planks that the bullet will penetrate if its speed is doubled, is:

A bullet moving with a speed of 100 ms^1 can just penetrate two planks of equal thickness. Then, the number of such planks penetrated by the same bullet when the speed is doubled will be

A bullet moving with a speed of 100 ms^(-1) can just penetrate into two planks of equal thickness. Then the number of such planks, if speed is doubled will be .

A bullet moving with a speed of 100 ms^(-1) can just penetrate into two planks of equal thickness. Then the number of such planks, if speed is doubled will be .

A bullet moving with a speed of 100 ms^(-1) can just penetrate into two planks of equal thickness. Then the number of such planks, if speed is doubled will be .

A bullet moving with a speed of 100 m/s can just penetrate two planks of equal thickness. Now if speed is doubled, then number of such planks required to stop the bullet will be

A bullet moving with a speed of 100 m/s can just penetrate two planks of equal thickness. Now if the speed is doubled, then the number of such planks required to stop the bullet will be

Solve the following examples: (numerical problems) A bullet having a mass of 10 g and moving with a speed of 1.5 m/s penetrates a thick wooden plank of mass 90 g. The plank was initially at rest. The bullet gets embedded in the plank and both move together. Determine their velocity.

Solve the following examples : A bullet having a mass of 10 g and moving with a speed of 1.5 m/s penetrates a thick wooden plank of mass 90 g. The plank was initially at rest. The bullet gets embedded in the plank and both move together. Determine their velocity.

A 10 g bullet moving at 200 m/s stops after penetrating 5 cm of wooden plank. The average force exerted on the bullet will be

A 10 g bullet moving at 200 m/s stops after penetrating 5 cm of wooden plank. The average force exerted on the bullet will be