Q4 of 17 Page 156

The distance between two stations is 240 km. A train takes 4 hours to cover this distance. Calculate the speed of the train.

The distance between two stations = 240 km


Time taken by the train to cover the distance 240 km = 4 h


Speed of the train = distance / Time taken


Speed = 240/4 =60 km/h.


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2

Which of the following are not correct?

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ii. Every object moves with a constant speed.


iii. Distances between two cities are measured in kilometers.


iv. The time period of a given pendulum is not constant.


v. The speed of a train is expressed in m/h.

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