Advertisements
Advertisements
प्रश्न
What are the rotational equivalents for the physical quantities, (i) mass and (ii) force?
उत्तर
The rotational equivalents for (i) mass and (ii) force are a moment of inertia and torque respectively.
APPEARS IN
संबंधित प्रश्न
Answer in brief:
Why are curved roads banked?
Somehow, an ant is stuck to the rim of a bicycle wheel of diameter 1 m. While the bicycle is on a central stand, the wheel is set into rotation and it attains the frequency of 2 rev/s in 10 seconds, with uniform angular acceleration. Calculate:
- The number of revolutions completed by the ant in these 10 seconds.
- Time is taken by it for first complete revolution and the last complete revolution.
Does the angle of banking depend on the mass of the vehicle?
A bend in a level road has a radius of 100m. find the maximum speed which a car turning this bend may have without skidding if the coefficient of friction between the tires and road is 0.8.
Derive an expression for maximum safety speed with which a vehicle should move along a curved horizontal road. State the significance of it.
What is a conical pendulum? Obtain an expression for its time period
Obtain an expression for maximum safety speed with which a vehicle can be safely driven along a curved banked road.
A particle undergoes uniform circular motion. The angular momentum of the particle remains conserved about, ______
When a mass is rotating in a plane about a fixed point, its angular momentum is directed along, ______
Give any two examples of torque in day-to-day life.
