Advertisements
Advertisements
प्रश्न
Can you suggest a real-life example about the motion of a body from the following velocity – time graph?
उत्तर
Suppose a train starts from rest and accelerates uniformly for some time and then moves with a constant velocity for a certain time interval. Then on applying the brakes, the train is uniformly retarded and comes to rest after some time in this situation, velocity – time graph of the train will be the same as shown in the figure.
APPEARS IN
संबंधित प्रश्न
Which of the two can be zero under certain conditions : average speed of a moving body or average velocity of a moving body ?
Fill in the following blank with suitable word :
A motorcycle has a steady……………. of 3 m/s2. This means that every………………. its…………….. increases by………….
What term is used to denote the change of velocity with time ?
Explain the meaning of the following equation of motion :v = u + at, where symbols have their usual meanings.
Define velocity. State its unit.
The figure shows the displacement - time graph for four bodies A, B C and D. In each case state what information do you get about the acceleration (zero, positive or negative).
For a uniformly retarded motion, the velocity-time graph is _____________
Write three equations of uniformly accelerated motion relating the initial velocity (u), final velocity (v), time (t), acceleration (a) and displacement (S).
Area under a v – t graph represents a physical quantity which has the unit
Draw a velocity versus time graph of a stone thrown vertically upwards and then coming downwards after attaining the maximum height.
