A sound wave travels in air toward the surface of a freshwater lake and enters into the water. The frequency of the sound does n
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Answer:
Explanation:
check attachment below for explicit explanation and answer.
Answer:
(a)
(b)
(c)
(d)
Solution:
As per the question:
Angular velocity,
Time taken by the wheel to stop, t = 2.4 h =
Distance from the axis, R = 38 cm = 0.38 m
Now,
(a) To calculate the constant angular velocity, suing Kinematic eqn for rotational motion:
= final angular velocity
= initial angular velocity
= angular acceleration
Now,
Now,
(b) The no. of revolutions is given by:
(c) Tangential component does not depend on instantaneous angular velocity but depends on radius and angular acceleration:
(d) The radial acceleration is given by:
Linear acceleration is given by: