Laws of Motion questions
1031 published questions with worked solutions.
- A ball of mass 0.12 kg is being whirled in a horizontal circle at the end of string 0.5 m long. It is capable of making 231...
- A small coin is kept at the rim of a horizontal circular disc which is set into rotation about vertical axis passing through its...
- A particle is moving along a circular path of radius 5 m with a uniform speed 5 m ,s^ -1 . What will be the average acceleration...
- Two particles of masses in the ratio 3 : 5 are moving in circular paths of radii in the ratio 4 : 7 with time periods in the...
- A coin placed on a rotating turn table just slips, if it is placed at a distance of 8 cm from the centre. If angular velocity of...
- A stone of mass m is tied to a string and is moved in a vertical circle of radius r making n rpm. The total tension in the string...
- A car of mass 1000 kg moves on a circular track of radius 20 m. If the coefficient of friction is 0.64, then the maximum velocity...
- The coefficient of friction between the tyres and the road is 0.25. The maximum speed with which car can be driven round a curve...
- A body moves along a circular path of radius 10 m and the coefficient of friction is 0.5. What should be its angular speed (in...
- A railway carriage has its centre of gravity at a height of 0.75 m above the rails, which are 1 m apart. The maximum safe speed...
- A cyclist is moving in a circular track of radius 80 m with a velocity V = 36 km ,h^ -1 . He has to lean from the vertical...
- What should be the coefficient of friction between the tyres and the road, when a car travelling at 60 km ,h^ -1 makes a level...
- The maximum speed with which a car is driven round a curve of radius 18 m without skidding (where, g=10 m ,s^ -2 and the...
- A wheel rotating with a certain angular velocity is stopped in 5 s and before it stops, it makes 20 revolutions. Then initially,...
- A body starts rotating from rest and completes 100 revolutions in 20 s. Find its angular acceleration
- A cyclist is riding with a speed of 27 km ,h^ -1 . As he approaches a circular turn on the road of radius 80 m, he applies brakes...
- A particle is moving in a circle of radius R in such a way that at any instant the normal and tangential components of its...
- Length of a simple pendulum is 2 m and mass of its bob is 2 kg. If the tension in the string exceeds 100 N, it will break. If g =...
- A body moving along a circular path of radius R with velocity v has centripetal acceleration a. If its velocity is made equal to...
- When a disc is rotating with angular velocity , a particle situated at a distance of 4 cm just begins to slip. If the angular...
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