Question

a scooterist covers a distance of 3 kilometer in 5 minute calculate his speed in .1. cm/s. 2.m/s. 3.km/h​

Answer 1

Answer:

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Answer 2

Answer:

1. Speed (cm/s) = 3600000cm/s
2. Speed (m/s) = 36000 m/s
3. Speed (km/hr) = 36 km/hr

Explanation:

• GIVEN

Distance = 3km

Time = 5min

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• In cm/s

1km = 100000cm

3km = 3 × 100000cm

3km = 300000cm

Distance = 300000cm

1min = 1/60 s

5min = 5/60 s

Time = 5/60 s

Speed = Distance÷Time

Speed = Distance/Time

Speed (cm/s) = 300000cm ÷ 5/60 s

Speed (cm/s) = 300000cm × 60/5 s

Speed (cm/s) = 300000cm × 12 s

Speed (cm/s) = 3600000cm/s

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• In m/s

1km = 1000m

3km = 3 × 1000m

3km = 3000m

Distance = 3000m

1min = 1/60 s

5min = 5/60 s

Time = 5/60 s

Speed = Distance÷Time

Speed = Distance/Time

Speed(m/s) = 3000m ÷ 5/60s

Speed (m/s) = 3000m × 60/5 s

Speed (m/s) = 3000m × 12 s

Speed (m/s) = 36000 m/s

_____________________________

• In km/h

Distance = 3km

1min = 1/60 hr

5min = 5/60 hr

Time = 5/60 hr

Speed = Distance÷Time

Speed = Distance/Time

Speed (km/hr) = 3km ÷ 5/60 hr

Speed (km/hr) = 3km × 60/5 hr

Speed (km/hr) = 3km × 12hr

Speed (km/hr) = 36 km/hr

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HOPE IT HELPS YOU !

THANKS !