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What is the mass of a bird if it has a potential energy of 147J when flying at a height of 30 m above the ground?

User Rosaline
by
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1 Answer

7 votes

Answer:

0.5kg

Step-by-step explanation:

Given parameters:

Potential energy = 147J

Height = 30m

Unknown:

Mass of the bird = ?

Solution:

Potential energy is the energy due to the position of a body. Now, the expression for finding the potential energy is given as;

P.E = mgH

m is the mass

g is the acceleration due to gravity = 9.8m/s²

H is the height

147 = m x 9.8 x 30

m = 0.5kg

User Robert Corey
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