Systems of Particles and Rotational Motion questions
1884 published questions with worked solutions.
- A ball of mass m moves with speed v and strikes a wall normally and is reflected back normally. If the time of contact with the...
- A body of mass 1000 kg is moving horizontally with a velocity 50 ms⁻¹. A mass of 250 kg is added. Find the final velocity. [OJEE...
- Three guns are aimed at the centre of a circle. They are mounted on the circle, 120° apart, and fire in a timed sequence such...
- In the motion of a rocket, the physical quantity which is conserved is [WB-JEE 2007]
- A ball of mass 0.2 kg rests on a vertical post of height 5 m. A bullet of mass 0.01 kg, travelling with a velocity v ms⁻¹ in a...
- 10000 small balls, each weighing 1 g, strike one square centimetre of area per second with a velocity of 100 ms⁻¹ in a normal...
- A rocket of mass 1000 kg exhausts gases at a rate of 4 kg s⁻¹ with a velocity of 3000 ms⁻¹. The thrust developed on the rocket is
- A shell at rest at the origin explodes into three fragments of masses 1 kg, 2 kg and m kg. The 1 kg and 2 kg pieces fly off with...
- A hockey player receives a corner shot at a speed of 15 ms⁻¹ at an angle of 30° with the y-axis and then shoots the ball of mass...
- A man of mass 50 kg is standing at one end of a boat of length 25 m and mass 200 kg. If he starts running and when he reaches the...
- A cricket ball of mass 0.25 kg, with speed 10 m/s, collides with a bat and returns with the same speed within 0.01 s. The force...
- A stationary bomb explodes into three pieces. One piece of 2 kg mass moves with a velocity of 8 ms⁻¹ at right angles to one of...
- A bullet of mass 10 g moving with 300 ms⁻¹ hits a block of ice of mass 5 kg and drops dead. The velocity of the ice is [OJEE 2009]
- A man of mass 60 kg and a boy of mass 30 kg are standing together on a frictionless ice surface. If they push each other apart,...
- If two particles collide at constant temperature, then which of the following is conserved? [DCE 2004]
- Consider the following two statements: I. Linear momentum of a system of particles is zero. II. Kinetic energy of a system of...
- A bullet of mass 5 g is shot from a gun of mass 50 kg. The muzzle velocity of the bullet is 5000 cm s⁻¹. The recoil velocity of...
- A train is moving with velocity 20 m/s on this dust is falling at the rate 50 kg/min. The extra force required to move the train...
- Impulse is [J&K CET 2006]
- A player kicks a football of mass 0.5 kg and the football begins to move with a velocity of 10 m/s. If the contact between the...
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