An empty parallel plate capacitor is connected between the terminals of a 16.7-v battery and charges up. the capacitor is then d
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Answer:
Explanation:
Given that:
the initial angular velocity
angular acceleration = 4.44 rad/s²
Using the formula:
Making t the subject of the formula:
where;
∴
t = 0.345 s
b)
Using the formula:
here;
= angular displacement
∴
Recall that:
2π rad = 1 revolution
Then;
0.264 rad = (x) revolution
x = 0.042 revolutions
c)
Here; force = 270 N
radius = 1.20 m
The torque = F * r
However;
From the moment of inertia;
given that;
I = 84.4 kg.m²
For re-tardation;
Using the equation
t = 0.398s
The required time it takes= 0.398s