Action and reaction are equal and opposite (Newton’s 3rd Law) so a deadly force must create a deadly reaction.
Answer:
15.68 m/s
Explanation:
Given that,
She catches the ball 3.2 s later at the same height from which it was thrown.
When it reaches the maximum height, its height is equal to 0.
It will move under the action of gravity.
2 here comes for the time of ascent and descent.
So,
So, the initial upward speed of the ball is 15.68 m/s.
Answer:
The distance that person walked: sqrt(6.25^2+15.5^2) = ~16.71
The power that person exerted:
P = F x S / T = [67.5 x 10 /(15.5/16.71)] x 16.71 / 12.3 = ~988.59 W
(Here, g = ~ 10m/s2)
Friction or vibration is your answer
The input voltage is 120 V and the transformer is a step up transformer due to increase in the voltage induced in the secondary coil.
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Input voltage </h3>
The input voltage of the transformer is the voltage of the primary coil and it is calculated as follows;
Ns/Np = Es/Ep
where;
- Ns is the number of turn in the secondary coil
- Np is the number of turn in the primary coil
- Es is the secondary voltage
- Ep is the primary voltage
2X/X = 240/Ep
2 = 240/Ep
Ep = 240/2
Ep = 120 V
Thus, the transformer is a step up transformer due to increase in the voltage induced in the secondary coil.
Learn more about transformer here: brainly.com/question/25886292
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