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I started to solve this problem but I’m not sure on what to do next.

I Started To Solve This Problem But Im Not Sure On What To Do Next class=

Sagot :

ANSWER:

3408.81 kg

STEP-BY-STEP EXPLANATION:

Given:

v = 111 m/s

Ek = 21000000 J

We have that the formula for kinetic energy is as follows:

[tex]E_k=\frac{1}{2}\cdot m\cdot v^2[/tex]

We substitute the values given in the exercise and solve for m (mass)

[tex]\begin{gathered} 21000000=\frac{1}{2}\cdot m\cdot111^2 \\ m=\frac{21000000\cdot2}{111^2} \\ m=3408.81\text{ kg} \end{gathered}[/tex]

The mass of the helicopter is 3408.81 kilograms.

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