Question

Compare the power of one motorcylce that travels twice as fast as a second indetical motorcycle.A.Same amount of powerB.Twice the powerC.4 times the powerD.Half the power

Answer 1

Given:

The power of one motorcycle travels twice as fast as a second motorcycle.

To compare the power of motorcycles.

Step-by-step explanation:

Let the speed of one motorcycle be v.

The speed of the second motorcycle will be 2v.

Power is calculated by the formula

`P=\text{ Force}* velocity`

The power of the first motorcycle will be

`P_1=Fv_1`

The power of the second motorcycle will be

`\begin{gathered} P_2=Fv_2 \\ =F*2v_1 \\ =2Fv_1 \\ =2P_1 \end{gathered}`

Thus, the power of the second motorcycle is twice the power of the first motorcycle.