Figure (10-Q3) shows a small wheel fixed coaxially on a bigger one of double the radius. The system rotates about the common axis. The strings supporting A and B do not slip on the wheels. If x and y be the distance travelled by A and B in the same time interval, then
(a) x = 2 y
(b) x = y
(c) y = 2 x
(d) none of these.
Figure
Answers
Answer:
(b) x = y
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(c) y = 2 x
If x and y be the distance traveled by A and B in the same time interval then y = 2 x for a small wheel fixed co-axially on a bigger one of double the radius when the system rotates about the common axis.
Explanation:
It is given that angular velocity is same for both the wheels.
Angular velocity :- Angular velocity, also known as rotational velocity, is a quantitative expression of the amount of rotation per unit of time a spinning object undergoes.
It is a vector quantity which consists of a component of angular velocity and either of two given directions or senses.
Therefore
we have:
… ….. equation (i)
... …. equation (ii)
From I and (ii) equations,
we get:
y = 2 x
For a small wheel fixed co-axially on a bigger one of double the radius, which rotates about the common axis. The strings supporting A and B do not slip on the wheels, with x and y be the distance traveled by A and B in the same time interval , then y = 2 x