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प्रश्न
Given figure shows the distance-time graph of three objects A, B and C. Study the graph and answer the following questions:
- Which of the three is travelling the fastest?
- Are all three ever at the same point on the road?
- How far has C travelled when B passes A?
- How far has B travelled by the time it passes C?
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उत्तर
- The slope of B is greater than that of A and C. Hence, B is moving the fastest.
- No, because the three lines are not intersecting at any point.
- By the time B passes A, C covers a distance of about 9 km or more.
- By the time B passes C, it has travelled 6 km.
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संबंधित प्रश्न
What is the nature of the distance-time graphs for uniform and non-uniform motion of an object?
Show the shape of the distance-time graph for the motion in the following case:
A car parked on a side road.
Which of the following distance-time graphs shows a truck moving with speed which is not constant?
What can you say about the motion of a body whose distance-time graph is a straight line parallel to the time axis ?
A car is travelling at 20 m/s along a road. A child runs out into the road 50 m ahead and the car driver steps on the brake pedal. What must the car’s deceleration be if the car is to stop just before it reaches the child ?
A spaceship is moving in space with a velocity of 60 kms−1. It fires its retro engines for 20 seconds and velocity is reduced to 55 kms−1. Calculate the distance travelled by a spaceship in 40 s, from the time of firing of the retro- rockets.
A body moves along a straight road with a speed of 20 m/s and has a uniform acceleration of 5 m/s2. What will be its speed after 2 s?
What are the uses of the graphical study of motion?
The slope of the distance-time curve is steeper/greater is the ______.
What do you infer if
- Distance – time graph is a straight line.
- The velocity-time graph is curved.
- Displacement time is zigzag.
