Find the kinetic energy of a car with a mass of 1.45 tons moving at a speed of 30 m / s

To find the required kinetic energy of the specified Volga car, we apply the formula: Ek = 0.5 * mВ * V ^ 2, where mВ is the mass of the indicated Volga car (mВ = 1.45 t; in the SI system mВ = 1.45 * 10 ^ 3 kg); V – speed of movement of “Volga” (V = 30 m / s).

Let’s perform the calculation: Ek = 0.5 * mV * V ^ 2 = 0.5 * 1.45 * 10 ^ 3 * 302 = 652.5 * 10 ^ 3 J.

Answer: The specified car “Volga” must have a kinetic energy of 652.5 kJ.