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3 years ago

How much GPE, in Joules, does a 126 kg object have if it is sitting on a shelf 3 meters above the

Physics

1 answer:

Ierofanga [76]3 years ago

4 0

Answer:

Ep = 3704.4 J

Explanation:

Data:

Mass (m) = 126 kg
Gravity (g) = 9.8 m/s²
Height (h) = 3 m
Potential Energy (Ep) = ?

Use formula:

Ep = m * g * h

Replace:

Ep = 126 kg * 9.8 m/s² * 3 m

Multiply, but it tells us that the units should not be used in the answer, so we solve it as follows:

Ep = 3704.4

What is the GPE?

The GPE is 3704.4 Joules.

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Newton’s 2nd law states that Force is equal to the product of mass (m) and acceleration (a):

F = m a ---> 1

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3 years ago

Read 2 more answers

Which statement accurately describes current electricity?

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Answer:

C. It is caused by flowing negatively charged particles.

Explanation:

Current electricity is caused by flowing negatively charged particles. The negatively charged particles that are responsible for the flow of electricity are called electrons.

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3 years ago

football player A has a mass of 110 kg is running on the field is velocity of 2 m/s football player B has a mass of 120 kg and a

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Complete Question:

Football player A has a mass of 110 kg, and he is running down the field with a velocity of 2 m/s. Football player B has a mass of 120 kg and is stationary. What is the total momentum after the collision?

Answer:

Total momentum = 220 Kgm/s.

Explanation:

Given the following data;

For footballer A

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Velocity, V1 = 2m/s

For footballer B

Mass, M1 = 120kg

Velocity, V1 = 0m/s since he's stationary.

To find the total momentum;

Momentum can be defined as the multiplication (product) of the mass possessed by an object and its velocity. Momentum is considered to be a vector quantity because it has both magnitude and direction.

Mathematically, momentum is given by the formula;

$Momentum = mass * velocity$