Hello!
An object has a velocity of 8 m/s and a kinetic energy of 480 J. What is the mass of the object?
We have the following data:
KE (Kinetic Energy) = 480 J
m (mass) = ? (in Kg)
v (speed) = 8 m/s
Formula to calculate kinetic energy:
\(KE = \dfrac{1}{2} *m*v^2\)
Solving:
\(KE = \dfrac{1}{2} *m*v^2\)
\(480 = \dfrac{1}{2} *m*8^2\)
\(480 = \dfrac{1}{2} *m*64\)
\(480*2 = 64*m\)
\(960 = 64m\)
\(64m = 960\)
\(m = \dfrac{960}{64}\)
\(\boxed{\boxed{m = 15\:Kg}}\end{array}}\qquad\checkmark\)
Answer:
15 kg
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I Hope this helps, greetings ... Dexteright02! =)
