Home
Class 11
PHYSICS
An ant is crawling on the rim of a circu...

An ant is crawling on the rim of a circular plank of radius 7cm. Calculate the distance and displacement of ant in (a) completing one round, (b) in completing 2.5 round and (c ) half around.

Text Solution

Verified by Experts

(a) Given, radius of circular plank r=7cm
Distance travelled by ant in one circle =2`pir`
`=2xx3.14xx7=43.96cm`
Displacement in one round=zero
(b) In 2.5 rounds
Distance`=2.5xx2pi r`
`=2.5xx43.96=109.9cm`.
(C ) In half round
Distance `=(2pir)/(2)=(43.96)/(2)=21.98cm`
Displacement `=7+7=14`
Promotional Banner

Topper's Solved these Questions

  • MOTION IN A STRAIGHT LINE

    MODERN PUBLICATION|Exercise COMPETITION FILE ( A.(MULTIPLE CHOICE QUESTIONS))|20 Videos

  • MOTION IN A STRAIGHT LINE

    MODERN PUBLICATION|Exercise COMPETITION FILE ( B.(MULTIPLE CHOICE QUESTIONS))|74 Videos

  • MOTION IN A STRAIGHT LINE

    MODERN PUBLICATION|Exercise REVISION EXERCISE (LONG ANSWER QUESTIONS)|5 Videos

  • MOTION IN A PLANE

    MODERN PUBLICATION|Exercise Chapter Practice Test|15 Videos

  • OSCILLATIONS

    MODERN PUBLICATION|Exercise Practice Test (For Board Examination)|12 Videos

Similar Questions

Explore conceptually related problems

A particle moves along a circular path of radius R. The distance and displacement of the particle after one complete revolution is

A particle moves along a circular path of radius R. The distance and displacement of a particle after one completer revolution is

A body is moving along a circular path of radius R. What will be the distance travelled and displacement of the body when it completes half a revolution ?

A particle is moving in a circle of diameter 5m . Calculate the distance covered and the displacement when it completes 3 revolutions.

If a body completes I round of a circular path of radius 7 cm, its displacement is

A particle moves on a circular path of radius 'r'. It completes one revolution in 40s. Calculate distances displacement in 2 min 20 s.

What will be the distance and displacement of the object when it makes one complete round of a circular park of radius 5m?

A particle is movingin circular path of radius 7 cm. Find the ratio of its displacement to the distance covered after the completion of a half

Knowledge Check

  • A particle moves along a circular path of radius R. The distance and displacement of the particle after one complete revolution is

    A
    `0,2pir`
    B
    `2pir, 0`
    C
    `0,pi r`
    D
    `pir, 0`

  • A particle moves along a circular path of radius R. The distance and displacement of a particle after one completer revolution is

    A
    `0, 2 pi r`
    B
    `2 pi r, 0`
    C
    `0, pi r`
    D
    `pi r, 0`

  • An object is moving in a circle of radius r. Calculate the displacement when it completes one full circle.

    A
    `2 pi r`
    B
    `4 pi r`
    C
    zero
    D
    `pi//2`