Rotational Motion Question 87
Question: An automobile moves on a road with a speed of . The radius of its wheels is 0.45 m and the moment of inertia of the wheel about its axis of rotation is . If the vehicle is brought to rest in 15s, the magnitude of average torque transmitted by its brakes to the wheel is
Options:
A)
B)
C)
D)
Show Answer
Answer:
Correct Answer: A
Solution:
-
As velocity of an automobile vehicle,
Angular velocity of a vehicle,
So, angular acceleration of an automobile,
Thus, average torque transmitted by its brakes to wheel
Physics for medical Entrance (Digvijay Singh) we needed for attempting medium difficult questions.
When mica is introduced, capacitance will increase hence voltage across capacitor, get decrease.