CBSE Class 7 Answered
Varun runs 800m in 2 minutes 40 seconds. What is his speed in metres per second and Km/h ?
Asked by Shreeya Nemani | 28 Aug, 2018, 08:04: PM
Expert Answer
Speed = distance / time
In m/s
We have distance = 800 m
time = 2 minutes 40 seconds = 160 seconds
speed = 800 / 160 = 5 m/s
In km/hr
We have distance = 800 m = 0.8 km
time = 2 minutes 40 seconds = 0.044 hr
speed = 0.8/0.044 = 18.18 km/hr
Answered by Abhijeet Mishra | 29 Aug, 2018, 09:44: AM
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