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Monica [59]
3 years ago
11

An object has a velocity of 8 m/s and a kinetic energy of 480 j what is the mass of the object

Physics
2 answers:
dedylja [7]3 years ago
7 0

We Know,

K.E. = 1/2 mv²

480 = 1/2 (m)(8)²

m = 960/64

m = 15 Kg

So, the mass of the object is 15 Kg


Airida [17]3 years ago
7 0

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

_______________________

I Hope this helps, greetings ... Dexteright02! =)

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