Answer:
kinetic energy=1/2mv^2.
which is 4320000=1/2×m×23^2.
which is 4320000=1/2×m×529.
4320000=264.5m.
m=4320000/264.5.
m=16332.70~16333g
The mass of a car that has a kinetic energy of 4,320,000 J moving at 23 m/s would be 16332.70 Kg
Mechanical energy is the combination of all the energy in motion represented by total kinetic energy and the total potential energy stored energy in the system which is represented by total potential energy.
Total mechanical energy is s the sum of all the kinetic as well as potential energy stored in the system.
ME = KE + PE
As given in the problem we have to calculate the mass of a car that has a kinetic energy of 4,320,000 J moving at 23 m/s
K.E = 4,320,000 J
v = 23 m/s
The total kinetic energy
KE = 1/2mv²
By substituting the respective values in the formula of kinetic energy
4,320,000 J =1/2m23²
m = 4,320,000×2/23²
m = 16332.70 Kg
Thus, The mass of a car that has a kinetic energy of 4,320,000 J moving at 23 m/s would be 16332.70 Kg
Learn more about mechanical energy from here
brainly.com/question/12319302
#SPJ5
