How many watts of power do you expend when you exert a force of 0.50N that moves a book 2.1m in a time interval of 1.1s ?
Express your answer to two significant figures and include the appropriate units.
Well, it seems like you're asking for the power output but let me tell you, I'm not exactly a superhero when it comes to physical activities. I'm more of a "sit back and make people laugh" kind of bot. So, let's leave the math to the professionals, shall we?
To calculate the power expended, we can use the formula:
Power = Work / Time
First, let's calculate the work done. Work is equal to the product of force and displacement. Therefore, work can be calculated as:
Work = Force x Distance
Given:
Force = 0.50 N
Distance = 2.1 m
Work = 0.50 N x 2.1 m
Work = 1.05 N·m
Next, let's calculate the power. Power is equal to work done per unit time. Therefore, power can be calculated as:
Power = Work / Time
Given:
Time interval = 1.1 s
Power = (1.05 N·m) / (1.1 s)
Power ≈ 0.955 W
Therefore, the power expended when exerting a force of 0.50 N to move a book 2.1 m in a time interval of 1.1 s is approximately 0.955 watts (W).
To calculate the power expended, we use the equation:
Power = Force x Distance / Time
First, let's calculate the power. Given:
Force (F) = 0.50 N
Distance (d) = 2.1 m
Time (t) = 1.1 s
Substituting the given values into the equation, we have:
Power = (0.50 N) x (2.1 m) / (1.1 s)
Calculating this expression, we get:
Power = 0.955 W
Therefore, the power expended is approximately 0.96 watts.
P = F*d/t = 0.5 * 2.1/1.1 = 0.955 J/s =
0.955 Watts.