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प्रश्न
If we denote speed by S, distance by D and time by T, the relationship between these quantities is ______.
विकल्प
S = D × T
T = `"S"/"D"`
S = `1/"T" xx "D"`
S = `"T"/"D"`
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उत्तर
If we denote speed by S, distance by D and time by T, the relationship between these quantities is `underlinebb(S = 1/T xx D)`.
Explanation:
Speed (S) is calculated as the distance (D) traveled divided by the time (T) taken to travel that distance.
Therefore, the correct formula is `S = D/T`
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संबंधित प्रश्न
What is the nature of the distance-time graphs for uniform and non-uniform motion of an object?
A driver of a car travelling at 52 km h−1 applies the brakes and accelerates uniformly in the opposite direction. The car stops in 5 s. Another driver going at 3 km h−1 in another car applies his brakes slowly and stops in 10 s. On the same graph paper, plot the speed versus time graphs for the two cars. Which of the two cars travelled farther after the brakes were applied?
Show the shape of the distance-time graph for the motion in the following case:
A car parked on a side road.
What conclusion can you draw about the speed of a body from the following distance-time graph ?
Fill in the following blank with suitable word :
The slope of a speed-time graph of a moving body gives its………………………..
Name the two quantities, the slope of whose graph give speed .
Complete the data of the table given below with the help of the distance-time graph given in the figure.
| Distance (m) | 0 | 4 | ? | 12 | ? | 20 |
| Time (s) | 0 | 2 | 4 | ? | 8 | 10 |
Distance between Bholu’s and Golu’s house is 9 km. Bholu has to attend Golu’s birthday party at 7 o’clock. He started from his home at 6 o’clock on his bicycle and covered a distance of 6 km in 40 minutes. At that point, he met Chintu and he spoke to him for 5 minutes and reached Golu’s birthday party at 7 o’clock. With what speed did he cover the second part of the journey? Calculate his average speed for the entire journey.
Assertion: The position-time graph of a uniform motion in one dimension of a body can have a negative slope
Reason: When the speed of the body decreases with time then, the position-time graph of the moving body has a negative slope.
Assertion: The slope of the distance-time graph of a body moving with high speed is steeper than the slope of the distance-time graph of a body with low velocity.
Reason: Slope of distance-time graph = speed of the body.
