Advertisements
Advertisements
प्रश्न
Define uniform velocity and give one example.
Advertisements
उत्तर
When a body covers equal distances in equal intervals of time (however small may be the time interval) in a specified direction, the body is laid to be moving with uniform velocity.
Example: A car moving on a straight road with constant speed has uniform velocity.
APPEARS IN
संबंधित प्रश्न
What is the Differnece between speed and velocity ?
Arrange the following speed in increasing order (keeping the least speed first):
An athlete running with a speed of 10 m/s.
Convert a speed of 54 km/h into m/s.
Give an example of the motion of a body moving with a constant speed but with a variable velocity. Draw a diagram to represent such a motion.
A body moves from rest with uniform acceleration and travels 270 m in 3 s. Find the velocity of the body at 10 s after the start.
A train is moving with a velocity of 90 km h-1 . It is brought to stop by applying the brakes which produce a retardation of 0.5 ms-2 Find :
(i) The velocity after 10 s , and
(ii) the time taken by the train to come to rest .
Write down the type of motion of a body along with the A – O – B of the following distance – time graph.
Write down the type of motion of a body along with the A – O – B of the following distance – time graph.
What are the uses of equations of motion?
Derive th e equation of motion.
S = ut+ `1/2` at2,
Where the symbols have their usual meanings
