Advertisements
Advertisements
प्रश्न
| 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.
Advertisements
उत्तर
- On standing outside the disc, we find that the pebble is moving on a circular path.
- On standing at the centre of the disc, we find that the pebble is stationary, placed just in front of us.
APPEARS IN
संबंधित प्रश्न
Draw a neat labelled diagram of conical pendulum. State the expression for its periodic time in terms of length.
Is it possible to have an accelerated motion with a constant speed? Explain
Draw a neat labelled diagram for a particle moving in a circular path with a constant speed. In you diagram show the direction of velocity at any instant.
The motion of the moon around the earth in a circular path is an accelerated motion.
Complete a sentence and explain it.
When an object is in uniform circular motion, its ______ changes at every point.
What is meant by uniform circular motion? Give two examples of uniform circular motion.
A particle is moving in uniform circular motion with speed 'V' and radius 'R'. The angular acceleration of the particle is ______.
A cyclist is riding with a speed of 43.2 km/h. As he approaches a circular turn on the road of radius 60 m, he applies brakes and reduces his speed at constant rate of 1.8 ms-2. The magnitude of the net acceleration of the cyclist is ______.
Angular speed of hour hand of a clock in degree per second is ______.
Why is uniform circular motion said to be accelerated?
