Advertisements
Advertisements
Question
What conclusion can you draw about the velocity of a body from the displacement-time graph shown below :
Advertisements
Solution
It represents uniform velocity. In this type of motion, body covers equal distance in equal interval of time in a specific direction.
APPEARS IN
RELATED QUESTIONS
Give one example of a situation in which a body has a certain average speed but its average velocity is zero.
Fill in the following blank with suitable word :
Velocity is the rate of change of……………………… It is measured in.............. .
What term is used to denote the change of velocity with time ?
A freely falling object travels 4.9 m in 1st second, 14.7 m in 2 nd second, 24.5 m in 3rd second, and so on. This data shows that the motion of a freely falling object is a case of :
A bus increases its speed from 36 km/h to 72 km/h in 10 seconds. Its acceleration is :
The slope of a speed-time graph gives:
Give one example of following motion :
Variable acceleration
The velocity-time graph of a body in motion is a straight line inclined to the time axis. The correct statement is ___________
A body, initially at rest, starts moving with a constant acceleration 2 m s-2. Calculate: (i) the velocity acquired and (ii) the distance travelled in 5 s.
An electron moving with a velocity of 5 × 104 ms−1 enters into a uniform electric field and acquires a uniform acceleration of 104 ms–2 in the direction of its initial motion.
(i) Calculate the time in which the electron would acquire a velocity double of its initial velocity.
(ii) How much distance the electron would cover at this time?
