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Ad libitum [116K]
3 years ago
12

A force F~ = Fx ˆı + Fy ˆ acts on a particle that

Physics
1 answer:
Nadusha1986 [10]3 years ago
8 0

Answer: Work done is 18J

Explanation:

Force F = (Fx, Fy) and Displacement S = (Sx,Sy)

Fx=7N

Fy=-1N

Sx=3m

Sy=3m

F=(7,-1)N and S=(3,3)m

Work done is calculated by taking dot product of force and displacement vector

W=F·S

W=7×3 + (-1)×3

W=21+(-3)=18J

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(a) 273.9 V

The power rating of the resistor is given by

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(b) 1.6 W

In this case, we have:

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Here we have two resistors of

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P_2 = \frac{V^2}{R_2}=\frac{(14.1 V)^2}{150 \Omega}=1.33 W

And this corresponds to the rate of heat generated in the first resistor (2.00 W) and in the second resistor (1.33 W).

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