Question

An object moving with a speed of 48 m/s has a kinetic energy of 4,632 J, what is the mass, in kg,

Answer 1

Answer:

4.0 Kg

Explanation:

From the question given above, the following data were obtained:

Velocity (v) = 48 m/s

Kinetic energy (KE) = 4632 J

Mass (m) =?

Kinetic energy can be defined as the energy possess by a moving object. Mathematically, it is expressed as:

KE = ½mv²

Where

KE => kinetic energy

m => mass of object

v => velocity

With the above formula, we can obtain the mass of the object as follow:

Velocity (v) = 48 m/s

Kinetic energy (KE) = 4632 J

Mass (m) =?

KE = ½mv²

4632 = ½ × m × 48²

4632 = ½ × m × 2304

4632 = m × 1152

Divide both side by 1152

m = 4632 / 1152

m = 4.0 Kg

Therefore, the mass of the object is 4.0 Kg