Advertisements
Advertisements
Question
A body starts from rest and acquires a velocity 10 m s-1 in 2 s. Find the acceleration.
Advertisements
Solution
Here, final velocity = 10 m/s
Initial velocity = 0 m/s
Time taken = 2s
Acceleration = (Final Velocity - Initial Velocity)/time
= (10/2) ms-2
= 5 ms-2
APPEARS IN
RELATED QUESTIONS
Which of the two can be zero under certain conditions : average speed of a moving body or average velocity of a moving body ?
Fill in the following blank with suitable word :
If a body moves with uniform velocity, its acceleration is ..............
A bus was moving with a speed of 54 km/h. On applying brakes it stopped in 8 seconds. Calculate the acceleration.
A bus increases its speed from 36 km/h to 72 km/h in 10 seconds. Its acceleration is :
The velocity-time graph of a body in motion is a straight line inclined to the time axis. The correct statement is ___________
When is the positive acceleration?
A body is thrown vertically upward with velocity u, the greatest height h to which it will rise is,
How will the equations of motion for an object moving with a uniform velocity change?
A girl walks along a straight path to drop a letter in the letterbox and comes back to her initial position. Her displacement–time graph is shown in Fig.8.4. Plot a velocity-time graph for the same.

An object starting from rest travels 20 m in the first 2 s and 160 m in the next 4 s. What will be the velocity after 7 s from the start?
