Advertisements
Advertisements
प्रश्न
Figure shows the velocity-time graphs for two cars A and B moving in the same direction. Which car has greater acceleration? Give reasons to your answer.
Advertisements
उत्तर
Car B has greater acceleration because the slope of line B is more than the slope of line A.
APPEARS IN
संबंधित प्रश्न
A train starts from rest and accelerates uniformly at a rate of 2 m s−2 for 10 s. It then maintains a constant speed for 200 s. The brakes are then applied and the train is uniformly retarded and comes to rest in 50 s. Find
- The maximum velocity reached,
- The retardation in the last 50 s,
- The total distance travelled,
- The average velocity of the train.
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?
When is the acceleration due to gravity negative?
From the diagram given below, calculate acceleration.
Define acceleration.
Distinguish between uniformly and non-uniformly accelerated motions.
What happens to the stepwise increasing speed-time graph when the size of each step is made very small?
From the given v-t graph it can be inferred that an object is
A bus can accelerate with an acceleration of 1 m/s2 . Find the minimum time for the bus to attain the speed of 100 km/s from 50 km /s.
The acceleration of the body that moves with a uniform velocity will be ______.
