Physics questions
20027 published questions with worked solutions.
- A can filled with water is revolved in a vertical circle of radius 4 m and the water does not fall down. The time period for a...
- 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 body is just being revolved in a vertical circle of radius R with a uniform speed. The string breaks when the body is at the...
- 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...
- A body of mass 1 kg is rotating in a vertical circle of radius 1 m. What will be the difference in kinetic energy at the top and...
- In a loop, a body starts at a height h=2R. The minimum speed with which the body must be pushed down initially in order that it...
- A bucket tied at the end of 1.6 m long string is whirled in a vertical circle with a constant speed. The minimum speed at which...
- A mass m is attached to the end of a rod of length l. The mass goes along a vertical circular path with the other end, hinged at...
- 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...
- The moment of inertia of a circular disc about one of its diameters is I. What will be its moment of inertia about a tangent...
- The moment of inertia of a sphere of mass M and radius R about an axis passing through its centre is 25MR^2. The radius of...
- Moment of inertia of ring about its diameter is I. Then, moment of inertia about an axis passing through centre perpendicular to...
- The ratio of the radii of gyration of a circular disc to that of a circular ring, each of same mass and radius, around their...
- The moment of inertia of two equal masses each of mass m at separation L connected by a rod of mass M, about an axis passing...
- The moment of inertia of a circular ring of mass 1 kg about an axis passing through its centre and perpendicular to its plane is...