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प्रश्न
Give any two examples of torque in day-to-day life.
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उत्तर
- The opening and closing of a door about the hinges.
- Turning off a nut using a wrench.
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संबंधित प्रश्न
Answer in brief:
Why are curved roads banked?
Answer in Brief:
A flywheel used to prepare earthenware pots is set into rotation at 100 rpm. It is in the form of a disc of mass 10 kg and a radius 0.4 m. A lump of clay (to be taken equivalent to a particle) of mass 1.6 kg falls on it and adheres to it at a certain distance x from the center. Calculate x if the wheel now rotates at 80 rpm.
Starting from rest, an object rolls down along an incline that rises by 3 in every 5 (along with it). The object gains a speed of `sqrt 10` m/s as it travels a distance of `5/3` m along the incline. What can be the possible shape/s of the object?
Does the angle of banking depend on the mass of the vehicle?
A hollow sphere has a radius of 6.4 m. what is the minimum velocity required by a motorcyclist at the bottom to complete the circle.
Derive an expression for maximum safety speed with which a vehicle should move along a curved horizontal road. State the significance of it.
Obtain an expression for maximum safety speed with which a vehicle can be safely driven along a curved banked road.
Discuss conservation of angular momentum with example.
A ring and a disc of different masses are rotating with the same kinetic energy. If we apply a retarding torque τ on the ring, it stops after completing n revolution in all. If the same torque is applied to the disc, how many revolutions would it complete in all before stopping?
What is the difference between rotation and revolution?
