Determine the kinetic energy of a 600-kg roller coaster car that is moving at a speed of 18 m/s.

97200 J

Explanation:

Applying,

K.E = mv²/2 Equation 1

Where K.E = Kinetic Energy, m = mass of the roller coaster car, v = velociety of the roller coaster car.

From the question,

Given: m = 600 kg, v = 18 m/s

Substitute these values into equation 1

K.E = (600×18²)/2

K.E = 97200 J.

Hence the kinetic energy of the car is 97200 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.