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प्रश्न
Draw a velocity-time graph for the free fall of a body under gravity starting from rest. Take g = 10m s-2
उत्तर
Below is the velocity-time graph for the free fall of a body under gravity, starting from rest:
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संबंधित प्रश्न
What does the slope of a speed-time graph indicate ?
Draw a velocity-time graph to show the following motion :
A car accelerates uniformly from rest for 5 s ; then it travels at a steady’ velocity for 5 s.
The velocity-time graph for part of a train journey is a horizontal straight line. What does this tell you about its acceleration ?
The speed-time graph of an ascending passenger lift is given alongside. What is the acceleration of the lift:
(1) during the first two seconds ?
(2) between second and tenth second ?
(3) during the last two seconds ?
What does the slope of velocity-time graph represent?
A train starting from rest picks up a speed of 20 ms−1 in 200 s. It continues to move at the same rate for the next 500 s and is then brought to rest in another 100 s.
- Plot a speed-time graph.
- From graph calculate
(a) uniform rate of acceleration
(b) uniform rate of retardation
(c) total distance covered before stopping
(d) average speed.
Draw the following graph:
Speed versus time for a fluctuating speed.
Draw velocity-time graph to show:
Deceleration
Write a sentence to explain the shape of graph.
State whether true or false. If false, correct the statement.
The velocity – time graph of a particle falling freely under gravity would be a straight line parallel to the x axis.
Mention the uses of the velocity-time graph.
