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प्रश्न
Give one example of following motion :
Variable velocity
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उत्तर
Example of variable velocity: A ball dropped from some height is an example of variable velocity.
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संबंधित प्रश्न
What do the following measure in a car ?
(a) Speedometer (b) Odometer
State whether speed is a scalar or a vector quantity. Give reason for your choice.
A train starting from Railway Station attains a speed of 21 m/s in one minute. Find its acceleration.
A car is moving on a straight road with uniform acceleration. The speed of the car varies with time as follows :
Time (s) : 0 2 4 6 8 10
Speed (m/s) : 4 8 12 16 20 24
Draw the speed-time graph by choosing a convenient scale. From this graph :
(1) Calculate the acceleration of the car.
(2) Calculate the distance travelled by the car in 10 seconds.
A bus moving along a straight line at 20 m/s undergoes an acceleration of 4 m/s2. After 2 seconds, its speed will be:
Express the following in m s−1.
1 km h−1
Express the following in m s-1.
18 km min-1
A car moving on a straight path covers a distance of 1 km due east in 100 s. What is the speed of the car?
The velocity-time graph of a moving body is given below in Figure
Total displacement.
Give two examples of uniform circular motion from your daily life.
