Advertisements
Advertisements
प्रश्न
Define variable velocity and give one example.
Advertisements
उत्तर
When a body covers unequal distances in equal intervals of time in a specified direction, the body is said to be moving with a variable velocity.
Example: A rotating fan at a constant speed has variable velocity, because of continuous change in direction.
APPEARS IN
संबंधित प्रश्न
What does the odometer of an automobile measure?
In addition to speed, what else should we know to predict the position of a moving body ?
A train starting from Railway Station attains a speed of 21 m/s in one minute. Find its acceleration.
A motorcyclist drives from place A to B with a uniform speed of 30 km h-1 and returns from place B to A with a uniform speed of 20 km h-1. Find his average speed.
Write the formula to calculate the speed of a body moving along a circular path. Give the meaning of each symbol which occurs in it.
Which of the following can sometimes be 'zero' for a moving body?
(i) average velocity
(ii) distance travelled
(iii) average speed
(iv) displacement
A bus moving along a straight line at 20 m/s undergoes an acceleration of 4 m/s2. After 2 seconds, its speed will be:
Give one example of following motion :
Variable velocity
For the motion with uniform velocity , how is the distance travelled related to the time ?
Draw the shape of the velocity-time graph for a body moving with (a) Uniform velocity and (b) Uniform acceleration.
