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.

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

Mechanical energy = 145 Joules.

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

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

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

read the sentence below and answer the question that follows. one of the norms in the village was to meet at the town square on fridays for a community dinner and dance. the underlined word in the sentence above is best defined as a a. cultural element shared by all people around the world b. specific area in a town used for traditional community events c. religious custom accepted and practiced by all members of a village d. behavioral pattern that is regularly accepted by a group of people

моля да ми помогне с английски език аз не разбирам

molya da mi pomogne s angliĭski ezik az ne razbiram