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4. Janta Express runs at a speed of 153 km per hour. What is its speed in (a) metres per minute?(b) centimetres per second?An ant is moving at a speed of 12.5 cm per second, |
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Answer» ( a ) metres per minute = 2250 m per minute.( B ) centimetres per second = 3750 cm per seconds.Step-by-step explanation:It runs at a speed of = 153 km per hourTo Find : ( a) metres per minute speed per minute = DISTANCE / TIME = 153 / 60 minutes = 2.25 km per minute distance in metres 1 km = 1000 m 2.25 km = 2.25 × 1000 = 2250 m per minutehence = It runs 2250 m per minute.To Find : ( b ) centimeters per second speed per second = distance / time = 2250 m / 60 secs. = 37.5 m per secondsdistance in centimeters 1 m = 100 cm 37.5 m = 37.5 × 100 cm = 3750 cm = 3750 cm per secondHence = it COVERS 3750 cm per second.please mark me as brainliest. |
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