Question

Having some trouble with this one :/

An object has a kinetic energy of 50 J and a velocity of 5 m/s, what is the mass of the object?

Answer 1

Mass, M = 4 kilograms.

Step-by-step explanation:

Given the following data;

Kinetic energy = 50 J

Velocity = 5 m/s

To find the mass of the object;

Kinetic energy can be defined as an energy possessed by an object or body due to its motion.

Mathematically, kinetic energy is given by the formula;

`K.E = (1)/(2)MV^(2)`

Where;

K.E represents kinetic energy measured in Joules.

M represents mass measured in kilograms.

V represents velocity measured in metres per seconds square.

Making mass the subject formula;

`M = (2K.E)/(V^(2))`

Substituting into the equation, we have;

`M = (2*50)/(5^(2))`

`M = (100)/(25)`

Mass, M = 4 kg