मराठी

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 - Science

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प्रश्न

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

आलेख
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उत्तर

Distance  (m) 0 4 8 12 16 20
Time (s) 0 2 4 6 8 10
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  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 13: Motion and Time - SHORT ANSWER QUESTIONS [पृष्ठ ७१]

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एनसीईआरटी एक्झांप्लर Science [English] Class 7
पाठ 13 Motion and Time
SHORT ANSWER QUESTIONS | Q 13. | पृष्ठ ७१

संबंधित प्रश्‍न

What is the nature of the distance-time graphs for uniform and non-uniform motion of an object?


What can you say about the motion of an object whose distance-time graph is a straight line parallel to the time axis?


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?


Figure shows the distance-time graph for the motion of two vehicles A and B. Which one of them is moving faster?

Figure: Distance-time graph for the motion of two cars


What conclusion can you draw about the speed of a body from the following distance-time graph ?


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 student draws a distance-time graph for a moving scooter and finds that a section of the graph is horizontal line parallel to the time axis. Which of the following conclusion is correct about this section of the graph?


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.


Two friends leave Delhi for Chandigarh in their cars. A starts at 5 am and moves with a constant speed of 30 km/h, whereas B starts at 6 am and moves with a constant speed of 40 kmh-1. Plot the distance-time graph for their motion and find at what time the two friends will meet and at what distance from Delhi.


The slope of the distance-time curve is steeper/greater is the ______.


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