. Bus A and Bus B …

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. Bus A and Bus B are moving on a road at a speed of 800 m/min and 200 cm/sec, respectively. Express their speed in S.I. units and write its dimensional formula. Tell which bus is running faster. The driver of bus A applies brakes suddenly and the passengers get a jerk in the forward direction. Give reason for it and also, name and state the law of motion related to it.

Posted by Aakriti Rustagi 5 years ago

CBSE > Class 10 > Science

1 answers

Unknown User 5 years ago

speed of Bus A =800m/min = 48 km/h Speed of Bus B= 200cm/sec =7.2km/h. Clearly Bus A is moving fast. The passengers get a forward jerk when driver of bus A applies brake. It is due to inertia. The law of motion related to this incident is Newton's first law of motion or law of inertia. Newton's 1st law states that a body at rest or uniform motion will continue to be at rest or uniform motion until and unless a net external force acts on it...

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CBSE > Class 10 > Science