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nikidastevens36
11.01.2021 •
Physics
49. A 6.1-kg bowling ball is liſted 2.1 m to a shell. Find the increase in the ball-Farth system's energy.
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Ответ:
125.5J
Explanation:
Given parameters:
Mass of the bowling ball = 6.1kg
Height of lifting = 2.1m
Unknown:
Increase in the ball energy = ?
Solution:
The ball has changed position by moving it from one point to another. So, it has acquired more potential energy.
Potential energy = mgh
m is the mass
g is the gravity
h is the height
Now insert the given parameters and solve;
Potential energy = 6.1 x 9.8 x 2.1 = 125.5J
Ответ: