<h3>Derivation of Conservation of Momentum</h3>
Applying Newton's third law, these two impulsive forces are equal and opposite i.e. If the time of contact is t, the impulse of the force F21 is equal to the change in momentum of the first object. The impulse of force F12 is equal to the change in momentum of the second object.
<h2>MARK ME BRAINLIST</h2>
Answer:
Answer of the part (a) Torque is zero .
Answer of the part(b) Net Torque is -8t N.m .
Answer of the part (c) is -2 (t)^-(1/2) N.m .
Answer of the part (d) is 8(t)^-(3) N.m .
Explanation:
Explanation of all parts is in the following attachments.
Ac voltmeters and ammeters usually give rms readings.
Answer:
a)
Explanation:
a) Let consider that disk accelerates and decelerates at constant rate. The expression for angular acceleration and deceleration are, respectively:
Acceleration
Deceleration
Since angular acceleration and deceleration have same magnitude but opposite sign. Let is find the maximum allowed angular speed from maximum allowed centripetal acceleration:
Maximum magnitude of acceleration/deceleration is:
The least time require for rotation is: