The amount of kinetic energy an object has depends on itsAn object has a velocity of 8 m/s and a kinetic energy of 480 J. What is the mass of the object? (Formula: )

7.5 kg
15 kg
60 kg
120 kg

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:  

Solving: 15 kg  

Explanation:

the equation for synthesis of water is as follows;

here two moles of hydrogen are used with one mole of oxygen which gives one molecule of water as a product. but shana misinterpreted 2 moles as 2 grams in this equation.