Laws of Motion questions
1031 published questions with worked solutions.
- A particle moves along a circle of radius ( 20 ) m with constant tangential acceleration. If the velocity of the particle is 80...
- **Statement 1:** Improper banking of roads causes wear and tear of tyres. **Statement 2:** The necessary centripetal force in...
- A heavy small-sized sphere is suspended by a string of length l. The sphere is rotated uniformly so as to describe a horizontal...
- If a_r and a_t represent radial and tangential accelerations, the motion of a particle will be *uniformly* circular if
- A string of length l is fixed at one end and carries a mass m at the other end. The string makes 2/ revolutions per second around...
- A gramophone disc is set revolving in a horizontal plane and reaches a steady state of motion of two revolutions per second. It...
- The speed of revolution of a particle moving around a circle is doubled and its angular speed is halved. What happens to the...
- **Statement 1:** When an automobile going too fast around a curve overturns, its inner wheels leave the ground first. **Statement...
- A particle is moving in a circular path with a constant speed v. If is the angular displacement, starting from = 0^ , the maximum...
- A string of length L is fixed at one end and makes 2/ rev/s around the vertical axis through the fixed end (as a conical...
- An object of mass 10 kg is whirled round a horizontal circle of radius 4 m by a revolving string inclined at 30^ to the vertical....
- A car is moving on a circular road of diameter 50 m with a speed of 5 m/s. It is suddenly accelerated at a rate of 1 m/s². If the...
- An aeroplane flying at a velocity of 900 km/h loops the loop. If the maximum force pressing the pilot against the seat is five...
- Two forces, each equal to P/2, act at right angles. Their effect may be neutralized by a third force acting along their bisector...
- The momentum of a particle is P = 2 t , +2 t , . What is the angle between the force F acting on the particle and the momentum P?
- The resultant of which of the following sets of three forces (forming a closed triangle) can **not** be zero?
- A man, using a 70 kg garden roller on a level surface, exerts a force of 200 N at 45^ to the ground. What is the vertical force...
- A boy is hanging from a horizontal branch of a tree. The tension in the arms will be maximum when the angle between the arms is
- A small sphere is hung by a string fixed to a wall. The sphere is pushed away from the wall by a horizontal stick exerting a...
- The angular speed of the seconds needle in a mechanical watch is
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