Question 6 of 10
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A. 75 ampere-turns
<u>Explanation:</u>
Given:
Number of turns, n = 50
Voltage, V = 9V
Current, I = 1.5A
MMF= ?
MMF is magnetomotive force.
MMF is independent on voltage and dependent on the number of turns and current in the wire.
Thus, MMF can be written as:
On substituting the value we get:
MMF = 50 X 1.5
MMF = 75 ampere-turns
The impulse of the boxers punch is 28 kgm/s.
The given parameters;
- <em>applied force by the boxer, F = 1400 N</em>
- <em>time of force action, t = 0.02 s</em>
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The impulse of the boxers punch is calculated as follows;
where;
- <em>F is the applied force (N)</em>
- <em>t is the time of force action (s)</em>
The magnitude of the impulse is calculated as follows;
Thus, the impulse of the boxers punch is 28 kgm/s.
Learn more about impulse here: brainly.com/question/25700778