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14 Maths Exercise Solutions

Classify the following as motion along a straight line, circular or oscillatory motion:

Motion of your hands while running.

Motion of a horse pulling a cart on a straight road.

Motion of a child in a merry-go-round.

Motion of a child on a see-saw.

Motion of the hammer of an electric bell.

Motion of a train on a straight bridge.

Motion of your hands while running.

Motion of a horse pulling a cart on a straight road.

Motion of a child in a merry-go-round.

Motion of a child on a see-saw.

Motion of the hammer of an electric bell.

Motion of a train on a straight bridge.

Which of the following are correct?（ ）

A. The basic unit of time is second.

B. Every object moves with a constant speed.

C. Distances between two cities are measured in kilometres.

D. The time period of a given pendulum is constant.

E. The speed of a train is expressed in .

A simple pendulum takes to complete oscillations. What is the time period of the pendulum?

The distance between two stations is . A train takes hours to cover this distance. Calculate the speed of the train.

The odometer of a car reads when the clock shows the time .What is the distance moved by the car,if at the odometer reading has changed to Calculate the speed of the car in during this time. Express the speed in also.

Salma takes from her house to reach her school on a bicycle. If the bicycle has a speed of , calculate the distance between her house and the school.

Show the shape of the distance-time graph for the motion in the following cases:

A car parked on a side road.

A car parked on a side road.

Show the shape of the distance-time graph for the motion in the following case:

A car moving with a constant speed.

A car moving with a constant speed.

Which of the following relations is correct?（ ）

A.

B.

C.

D.

The basic unit of speed is:（ ）

A.

B.

C.

D.

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