8. A child runs at a speed of 10 metres per second. How much time will he take to
cover a distance of 1 km?
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Step-by-step explanation:
♠️ We know, speed is ratio of distance traveled to the time taken, i.e
✔️ Speed = Distance / time
⏺️speed = 10 m / s
⏺️ distance = 1 km = 1000 m
⏺️time = t = ?
=> Speed = Distance / time
=> time = distance / speed
=> time = 1000 / 10
=> [ time = 100 s ]
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