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3 March, 22:57

physical science : Find the speed of an object that covers 400 km in 5 hr.

a. 40 km/hr

b. 80 km/hr

c. 2000 km/hr

d. 800 km/hr

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  1. 3 March, 23:17
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    speed=distance / time.

    dа ta:

    distance=400 Km

    time=5 hours.

    Speed=400 Km / 5 hours=80 km/hr.

    Answer: b. 80 Km/hr.
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