Advertisements
Advertisements
प्रश्न
State True or False
The earth moves around the sun with a uniform.
पर्याय
True
False
Advertisements
उत्तर
False
संबंधित प्रश्न
In U. C. M (Uniform Circular Motion), prove the relation `vec v = vec w xx vec r`, where symbols have their usual meanings.
Why is the motion of a body moving with a constant speed around a circular path said to be accelerated?
A piece of stone tied at the end of a thread is whirled in a horizontal circle with uniform speed by hand. Answer the following questions:
- Is the velocity of stone uniform or variable?
- Is the acceleration of stone uniform or variable?
- What is the direction of acceleration of stone at any instant?
- Which force provides the centripetal force required for circular motion?
- Name the force and its direction which acts on the hand.
The motion of the moon around the earth in a circular path is an accelerated motion.
Which of the following remains constant in a uniform circular motion, Speed or Velocity, or both?
Solve the following problem.
A projectile is thrown at an angle of 30° to the horizontal. What should be the range of initial velocity (u) so that its range will be between 40m and 50 m? Assume g = 10 m s-2.
Explain the meaning of uniform circular motion.
In uniform circular motion, although the speed is constant, why does acceleration occur?
In uniform circular motion, although the speed is constant, why does acceleration occur?
Angular displacement is measured in which unit?
