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cricket20 [7]
2 years ago
11

A child pushes a toy car down a hill. after 5 seconds, the car has kinetic energy of 115 J and a gravitational potential energy

of 30 J. What is the car’s mechanical energy at that time.
Geography
1 answer:
m_a_m_a [10]2 years ago
7 0

Answer:

Mechanical energy = 145 Joules

Explanation:

Given the following data;

Kinetic energy = 115J

Gravitational Potential energy = 30J

To find the mechanical energy;

Mechanical energy = kinetic energy + gravitational potential energy

Substituting into the equation, we have

Mechanical energy = 115 + 30

<em>Mechanical energy = 145 Joules. </em>

Mechanical energy can be defined as the ability (capacity) to do work. The two (2) main types of mechanical energy are;

<em>a. Gravitational potential energy (GPE): it is an energy possessed by an object or body due to its position above the earth.</em>

<em>b. Kinetic energy (KE): it is an energy possessed by an object or body due to its motion.</em>

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