Advertisements
Advertisements
Question
For a body moving along a circular path, show that:
Linear speed = Angular velocity X radius of the circle
Advertisements
Solution
Angular displacement θ = length of arc/ radius of circle
θ= I / r
I= θxr
divide above equation with t
l/t = θxr/ t
now l/t = v {linear speed)
θ/ r= w
So v = ωr.
APPEARS IN
RELATED QUESTIONS
When is instantaneous speed the same as the average speed?
Which is greater?
(i) 60 km/hr
(ii) 15 m/s
Does uniform speed mean constant speed?
Can the speed of a body be negative?
In figure the position of a body times is shown . Calculate the speed of the body as it moves from 0 to A, A to B, B to C and i ts average speed .
What is the unit of average speed in SI system?
A bus travels 54 km in 90 minutes. The speed of the bus is ______.
Why did the actual speed differ from the average, speed?
A car starting from rest moves with a uniform acceleration of 0.2 ms-2 for 3 min. Find the
- speed acquired
- the distance traveled.
Abus from Chennai travels to Trichy passes loo km, 160 km at 10.15 am, 11.15 am respectively. Find the average speed of the bus during 10.15 – 11.15 am.
