Advertisements
Advertisements
प्रश्न
Can you suggest a real-life example about the motion of a body from the following velocity – time graph?

Advertisements
उत्तर
A ball is thrown vertically upward and it returns back to earth after some time. In this situation, the graph will the same as that shown in the figure.

APPEARS IN
संबंधित प्रश्न
A bus decreases its speed from 80 km h−1 to 60 km h−1 in 5 s. Find the acceleration of the bus.
Explain why, the motion of a body which is moving with constant speed in a circular path is said to be accelerated.
A body starting from rest travels with uniform acceleration. If it travels 100 m in 5 s, what is the value of acceleration ?
A bus was moving with a speed of 54 km/h. On applying brakes it stopped in 8 seconds. Calculate the acceleration.
A car acquire a velocity of 72 km per hour in 10 second starting from rest. Find
(1) the acceleration,
(2) the average velocity, and
(3) the distance travelled in this time.
Give one example of following motion :
Variable acceleration
Write three equations of uniformly accelerated motion relating the initial velocity (u), final velocity (v), time (t), acceleration (a) and displacement (S).
What do you understand by the term acceleration?
Can you suggest a real-life example about the motion of a body from the following velocity – time graph?

Two stones are thrown vertically upwards simultaneously with their initial velocities u1 and u2 respectively. Prove that the heights reached by them would be in the ratio of `"u"_1^2 : "u"_2^2` (Assume upward acceleration is –g and downward acceleration to be +g)
