a box is move 8 meters by a force of 30N and it takes for seconds to do So how much power is used?
Answer (1)
SOLUTION:Step 1: List the given values.[tex]\begin{aligned} & F = \text{30 N} \\ & d = \text{8 m} \\ & t = \text{4 s} \end{aligned}[/tex]Step 2: Calculate the work done.[tex]\begin{aligned} W & = Fd \\ & = \text{(30 N)(8 m)} \\ & = \text{240 J} \end{aligned}[/tex]Step 3: Calculate the power[tex]\begin{aligned} P & = \frac{W}{t} \\ & = \frac{\text{240 J}}{\text{4 s}} \\ & = \boxed{\text{60 W}} \end{aligned}[/tex]Hence, 60 W of power is used.
