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03.02.2020 •
Physics
Running is probably the simplest individual sport for promoting both health-related and skill-related fitness. select the best answer from the choices provided. t f
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Ответ:
h = 2.22 m
Explanation:
Using the international system, we know that the gravity of the earth is 9.8 m / s².
then, we have as data:
Potential Energy (Ep) = 720 JMass (m) = 33 kgGravity (g) = 9.8 m/s²Height (h) = ?Use formula:
Replace:
Joules descompose:
Solve the multiply of mass and gravity:
Multiply the units. Knowing that kg * m/s² = N, so:
Simplify the Newtons (N), and it divides:
What is the child’s height above the ground?
The child's height above the ground is 2.22 meters.