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31 votes
31 votes
A paper airplane moving 2.33 m/s has 0.161 J of KE. What is its mass? (Unit=kg)

User Mpowered
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2 Answers

21 votes
21 votes

Answer:

0.0593

Step-by-step explanation:

User Reshmi
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3.0k points
18 votes
18 votes

Answer:

Mass, m = 0.0593 Kg

Step-by-step explanation:

Given the following data;

Velocity = 2.33 m/s

Kinetic energy = 0.161 Joules

To find the mass of the paper airplane;

K.E = ½mv²

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 = ½mv²

Where;

K.E represents kinetic energy measured in Joules.

M represents mass measured in kilograms.

V represents velocity measured in metres per seconds square.

Substituting the values into the formula, we have;

0.161 = ½*m*2.33²

0.161 * 2 = 5.4289m

0.322 = 5.4289m

Mass, m = 0.322/5.4289

Mass, m = 0.0593 Kg

User Gdm
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