SSC
PHYSICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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You walk 10 meters to math class in 20 seconds. Your average speed is
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2 m/s
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0.5 m/s
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200 m/s
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5 m/s
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Explanation:
Detailed explanation-1: -The speed of an object is found out by dividing the distance that the object covers by the time in which the object takes to cover this distance. If ‘D’ is the distance traveled in some time ‘T’ then the speed of the object for this journey or ‘s’ is equal to s = D/T. This is the simplest case.
Detailed explanation-2: -First, convert the distance from kilometres (km) to metres (m): 1 km = 1, 000 m. Then convert the time from hours (h) to seconds (s): 1 h = 3, 600 s. Then, substitute the figures to obtain the final value in m/s: Speed (m/s) = 72, 000 ÷ 3, 600.
There is 1 question to complete.