Advertisements
Advertisements
प्रश्न
Which one of the following is most likely not a case of uniform circular motion?
विकल्प
Motion of the Earth around the Sun.
Motion of a toy train on a circular track.
Motion of a racing car on a circular track.
Motion of hours’ hand on the dial of the clock.
Advertisements
उत्तर
Motion of the Earth around the Sun.
APPEARS IN
संबंधित प्रश्न
Draw a neat labelled diagram of conical pendulum. State the expression for its periodic time in terms of length.
A particle starts from the origin at t = 0 s with a velocity of 10.0 `hatj "m/s"` and moves in the x-y plane with a constant acceleration of `(8.0 hati + 2.0 hatj) ms^(-2)`.
- At what time is the x-coordinate of the particle 16 m? What is the y-coordinate of the particle at that time?
- What is the speed of the particle at the time?
Why is the motion of a body moving with a constant speed around a circular path said to be accelerated?
| A small pebble tied at one end of a string is placed near the periphery of a circular disc, at the centre of which the other end of the string is tied to a peg. The disc is rotating about an axis passing through its centre. |
- What will be your observation when you are standing outside the disc? Explain.
- What will be your observation when you are standing at the centre of the disc? Explain.
Complete a sentence and explain it.
When an object is in uniform circular motion, its ______ changes at every point.
Which of the following quantity remains constant in a uniform circular motion?
Answer the following question.
Show that the centripetal force on a particle undergoing uniform circular motion is -mrω2.
A uniform rod of length '6L' and mass '8 m' is pivoted at its centre 'C'. Two masses 'm' and ' 2m' with speed 2v, v as shown strikes the rod and stick to the rod. Initially the rod is at rest. Due to impact, if it rotates with angular velocity 'w1' then 'w' will be ________.
Which of the following is correct about uniform circular motion
- the direction of motion is continuously changed
- the direction of motion is not changed
- speed and direction both remain constant
- speed is constant but the direction is changing
In uniform circular motion, although the speed is constant, why does acceleration occur?
