Advertisements
Advertisements
प्रश्न
Draw velocity – time graph for the following situation:
When a body is moving with variable velocity and variable acceleration.
Advertisements
उत्तर
Following is the velocity-time graph:
When a body is moving with variable velocity and variable acceleration

APPEARS IN
संबंधित प्रश्न
Give a scientific reason.
When an object falls freely to the ground, its acceleration is uniform.
A vehicle is accelerating on a straight road. Its velocity at any instant is 30 km/h. After 2 s, it is 33.6 km/h, and after further 2 s, it is 37.2 km/h. Find the acceleration of the vehicle in m s-2. Is the acceleration uniform?
Draw velocity – time graph for the following situation:
When a body is moving with variable velocity, but uniform retardation.
Define acceleration.
A body falls towards the earth. Does it have positive or negative acceleration?
Correct your friend who says that acceleration gives the idea of how fast the position changes.
Assertion: The accelerated motion of an object may be due to change in magnitude of velocity or direction or both of them.
Reason: Acceleration can be produced only by change in magnitude of the velocity. It does not depend the direction.
Exercise Problem.
A racing car has a uniform acceleration of 4 ms–2. What distance it covers in 10 s after the start?
The slope of a velocity-time graph gives ______.
Assertion: A positive acceleration of a body can be associated with the slowing down of the body.
Reason: Acceleration is a vector.
