HARD
11th Odisha Board
IMPORTANT
Earn 100

A glass marble whose mass is 100 g falls from a height of 40 m and rebounds to a height of 10 m. Find the impulse and average force between the marble and the floor if the time of contact is 0.15 s.

Important Questions on Laws of Motion

MEDIUM
11th Odisha Board
IMPORTANT
A stone of mass 5 kg falls from a height 40 m and buries itself 2 m deep in sand. Find the average resistance offered by sand and the time it takes to penetrate.
MEDIUM
11th Odisha Board
IMPORTANT
A machine gun of mass 10 kg fires 25 g bullets at the rate of 5 bullets per second with a speed of 500 m/s. What force in newton must be applied to the gun to hold it in position.
MEDIUM
11th Odisha Board
IMPORTANT

A hammer weighing 2 kg and moving with a speed of 5 m/s strikes the head of a nail and drives it 10 cm into a wall. Neglecting the mass of the nail, calculate

(i) Acceleration during impact

MEDIUM
11th Odisha Board
IMPORTANT

A hammer weighing 2 kg and moving with a speed of 5 m/s strikes the head of a nail and drives it 10 cm into a wall. Neglecting the mass of the nail, calculate

(ii) Interval during the impact

EASY
11th Odisha Board
IMPORTANT

A hammer weighing 2 kg and moving with a speed of 5 m/s strikes the head of a nail and drives it 10 cm into a wall. Neglecting the mass of the nail, calculate

(iii) Impulse.

MEDIUM
11th Odisha Board
IMPORTANT

A 5 kg shell is fired with a nozzle velocity of 700 m/s from a gun of barrel length 2.4 m long. Calculate the average value of

(i) Acceleration

MEDIUM
11th Odisha Board
IMPORTANT

A 5 kg shell is fired with a nozzle velocity of 700 m/s from a gun of barrel length 2.4 m long. Calculate the average value of

(ii) The time 

EASY
11th Odisha Board
IMPORTANT

A 5 kg shell is fired with a nozzle velocity of 700 m/s from a gun of barrel length 2.4 m long. Calculate the average value of

(iii) The force