Speed of an Object
Speed of an Object
Speed is a way of measuring how quickly something is moving or being done, or something moving fast.
Calculation of Speed: We can calculate speed from the given formula.
The SI unit of speed is meter per second(m/s). We also calculate speed as kilo meter per hour(km/h).
Illustration 1: If a person covers a distance of 15 m in 5 seconds then find out the speed of the person.
Solution: As we know,
Therefore,
Illustration 2: A car is moving with a speed of 50 m/s for 20 seconds. Find out the distance covered by the car in given time period.
A man is walking at the rate of 5 km/hr crosses a bridge in 15 minutes.The length of the bridge is: | |||
| Right Option : D | |||
| View Explanation | |||
Karan drives his car at a speed of 150 km/h. The time taken by him to cover 900 km, is ______________ | |||
| Right Option : C | |||
| View Explanation | |||
A body moves along a straight line starting from point A then passing through Point B and reaches point C in 10 min. The distance between point A and B is 50 m and between B and C is 30 m, then the speed of the body is ___________ m | |||
| Right Option : B | |||
| View Explanation | |||
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