Concept of Distance and Displacement

Author:Dhiren M Doshi
9th CBSE
IMPORTANT

Important Questions on Concept of Distance and Displacement

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A car moving at a uniform speed covers a distance of 200 m in 4 s. Calculate the distance it will cover in 5 s.

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A car moving at a uniform speed covers a distance of 200 m in 4 s. Calculate the time it will take to cover 300 m.

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For a body which has moved through a semicircle in a circle of radius r. Find its displacement.

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Find the odd-one out. Give reasons for your choice. 

Weight, Acceleration, Velocity, Distance, Momentum

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On a 100 m straight track, an athlete completes the race from the starting line up to the final in a particular time. Calculate the magnitude of displacement.

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What is the displacement of the Earth when it completes one revolution around the Sun?

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The distance-time graph for a body having uniform motion is a

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For a body which has moved through a semicircle in a circle of radius r, find its distance.

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What does the odometer of an automobile measure?

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Give an example of a motion in which distance is covered but there is no displacement.

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Under what condition(s) is the magnitude of average velocity of an object equal to its average speed?

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A boy is moving along a circular path of radius R. What is the distance and displacement of the boy when he completes half a revolution?

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Under what conditions is the resultant displacement of a body zero even when it travels a certain distance? Explain with an example.

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Give one type of motion where distance and displacement are same.

MEDIUM
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It takes 6 minutes for the signal sent by an artificial satellite orbiting around the Earth to reach the ground station. Calculate the distance of the artificial satellite from the ground station. The signal travels with the speed of light, i.e. 3×108 m/s.

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A train takes 3 h 15 min to travel from Agra to Delhi with a uniform speed of 60 km/h. Find the distance between the two cities.

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In a game of cricket, the length of the pitch is 18 m. After completing one run, a batsman turns back but gets run out when he is halfway through his second run. Calculate the distance travelled and also his displacement.

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An object moves 60 m due east and then 80 m due north. Find the distance travelled and the magnitude of displacement.

HARD
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A person walks along the side of a square field whose each side is 100 m long. What is the magnitude of displacement if the person moves from one corner of the square to the diagonally opposite corner?

EASY
IMPORTANT

A rectangular track is 40 m long and 30 m broad. A man starts walking from one corner of the track and reaches the opposite corner. Find the distance travelled and the magnitude of displacement.