Question

A soccer ball is traveling at a velocity of 50 m/s. The kinetic energy of the ball is 500 J. What is the mass of the soccer ball? (Formula: KE = 1/2mv^2 )

0.1 kg
0.2 kg
0.4 kg
0.5 kg

Answer 1

A soccer ball is traveling at a velocity of 50 m/s. The kinetic energy of the ball is 500 J.The mass of the soccer ball is 0.4 kgs. This answer is derived from the formula K=1/2 MV^2.So velocity and kinetic energy are given from that mass of the ball is calculated.By substituting the values 500=1/2*M*50*50 which gives M=0.4 Kgs.

Answer 2

The mass of a soccer ball traveling at a velocity of 50 m/s and has a kinetic energy of 500 J is 0.4kg.

How to calculate mass?

The mass of a soccer ball can be calculated using the following formula:

K.E = ½mv²

Where;

• K.E = kinetic energy (J)
• m = mass (kg)
• v = velocity (m/s)

According to this question, a soccer ball is traveling at a velocity of 50 m/s and has a kinetic energy of 500 J. The mass of the kinetic energy is as follows:

500 = ½ × m × 50²

500 = ½ × 2500m

500 = 1250m

m = 500/1250

m = 0.4kg

Therefore, the mass of a soccer ball traveling at a velocity of 50 m/s and has a kinetic energy of 500 J is 0.4kg.

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