Calculaily nec reryy and work
a 600 kg car is at rest, and then accelerates to 5 m/s.
what is its original kinetic energy?
what is its final kinetic energy?
how much work was used?

Original Kinetic Energy= 0 J

Final Kinetic Energy= 7500 J

Total Work Done=7500 J

Explanation:

Kinetic Energy =

where, m= mass of the body/car

            v= velocity of the car

Initially car is at rest, so v=0.

Original Kinetic Energy= 0 J

After being accelerated to a velocity of 5m/s Kinetic Energy= ×= 7500 J

Final Kinetic Energy= 7500 J

Total Work Done on the Car = Final Kinetic Energy- Initial Kinetic Energy

This is assuming that the car accelerates under ideal circumstances ie. under no friction or resistance of any kind.

Total Work Done=7500 J

nacl or sodium chloride is an ionic compound. this is because an ionic compound pertains to a compound that consists of positively and negatively charged ions. in this case, na (sodium) has a tendency to lose one electron when it reacts with with other atoms, so the resulting sodium ion contains 11 protons and 10 electrons, thus making it positively charged (na+), when chlorine reacts, it usually gains one electron to form an ion called chloride, thus making it negatively charged ( since the ions are oppositely charged, they attract.