Advertisements
Advertisements
प्रश्न
Define variable velocity and give one example.
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?
What is the SI unit of retardation ?
A snail covers a distance of 100 metres in 50 hours. Calculate the average speed of snail in km/h.
Convert a speed of 54 km/h into m/s.
A train travels the first 15 km at a uniform speed of 30 km/h; the next 75 km at a uniform speed of 50 km/h; and the last 10 km at a uniform speed of 20 km/h. Calculate the average speed for the entire train journey.
One of the following is not a vector quantity. This one is :
Express 15 m s-1 in km h-1.
Draw the shape of the velocity-time graph for a body moving with (a) Uniform velocity and (b) Uniform acceleration.
Draw a diagram to show the motion of a body whose speed remains constant, but velocity changes continuously.
