GK
GENERAL SCIENCE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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To compute for speed, what are the two quantities that you need to obtain?
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distance and time
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distance and direction
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distance and displacement
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distance and velocity
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Explanation:
Detailed explanation-1: -You can find the average speed of an object if you know the distance travelled and the time it took. The formula for speed is speed = distance ÷ time. To work out what the units are for speed, you need to know the units for distance and time.
Detailed explanation-2: -Solution : Distance travelled by an object in given time interval and acceleration produced in the object can be calculated from speed-time graph.
Detailed explanation-3: -Work can be calculated with the equation: Work = Force × Distance. The SI unit for work is the joule (J), or newton • meter (N • m). One joule equals the amount of work that is done when 1 N of force moves an object over a distance of 1 m.
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