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प्रश्न
In addition to speed, what else should we know to predict the position of a moving body ?
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उत्तर
Besides speed, we should know the direction to predict the position of a moving body.
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संबंधित प्रश्न
The distance between Delhi and Agra is 200 km. A train travels the first 100 km at a speed of 50 km/h. How fast must the train travel the next 100 km, so as to average 70 km/h for the whole journey ?
Give one example of a motion where an object does not change its speed but its direction of motion changes continuously.
The speed of a moving object is determined to be 0.06 m/s. This speed is equal to :
Which of the following can sometimes be 'zero' for a moving body?
(i) average velocity
(ii) distance travelled
(iii) average speed
(iv) displacement
When is a body said to be in motion?
Arrange the following speeds in increasing order.
10 m s-1, 1 km min-1 and 18 km h-1.
A train takes 2 h to reach station B from station A, and then 3 h to return from station B to station A. The distance between the two stations is 200 km. Find:
The average speed,
The average velocity of the train.
From the displacement-time graph of a cyclist given below in the Figure, find The average velocity in the first 4 s.
The velocity-time graph of a moving body is given below in Figure
Total displacement.
Define variable velocity and give one example.
