Advertisements
Advertisements
प्रश्न
Interpret the following graph:
Advertisements
उत्तर
ln this graph portion O to A represents motion with acceleration, A to E represents motion with uniform velocity, 8 to C represents motion with acceleration.
APPEARS IN
संबंधित प्रश्न
Define acceleration. State its unit.
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?
If a body is moving with a constant velocity its acceleration is ______.
A ball is rolling from A to D on a flat and smooth surface. Its speed is 2 cm/s. On reaching B, it was pushed continuously up to C. On reaching D from C, its speed had become 4 cm/s. It took 2 seconds for it to go from B to C. What is the acceleration of the ball as it goes from B to C?
The acceleration of a moving body is constant in magnitude and direction. Must the path of the body be a straight line?
If not, given an example.
What does a positive acceleration mean?
The distance covered by a body is directly proportional to the square of the time elapsed. What can you say about its acceleration?
Convert the following acceleration:
7200 km/h2 into m/s2
A car accelerates to a velocity of 30 m/s in 10 s and then decelerates for 20 s so that it stops. Draw a velocity-time graph to represent the motion and find:
Distance travelled
From the given v-t graph it can be inferred that an object is
