Advertisements
Advertisements
प्रश्न
A bus increases its speed from 36 km/h to 72 km/h in 10 seconds. Its acceleration is :
पर्याय
5 m/s2
2 m/s2
3.6 m/s2
1 m/s2
Advertisements
उत्तर
1 m/s2
Final velocity is = 72 km/h = 20 m/s
Initial velocity is = 36 km/h = 10 m/s
Time taken is 10 sec. so,
Acceleration = `(20-10)/10`
= 1 m/s2
So, the answer is
(d) 1 m/s2
APPEARS IN
संबंधित प्रश्न
Fill in the following blank with suitable word :
Velocity is the rate of change of……………………… It is measured in.............. .
Fill in the following blank with suitable word :
If a body moves with uniform velocity, its acceleration is ..............
Describe the motion of a body which is accelerating at a constant rate of 10 m s–2. If the body starts from rest, how much distance will it cover in 2 s ?
Explain the meaning of the following equation of motion :v = u + at, where symbols have their usual meanings.
A body starting from rest travels with uniform acceleration. If it travels 100 m in 5 s, what is the value of acceleration ?
Define velocity. State its unit.
A body starts from rest and acquires a velocity 10 m s-1 in 2 s. Find the acceleration.
For a uniformly retarded motion, the velocity-time graph is _____________
Can you suggest a real-life example about the motion of a body from the following velocity – time graph?
Draw a velocity versus time graph of a stone thrown vertically upwards and then coming downwards after attaining the maximum height.
