At what speed does a 1200 kg compact car have the same kinetic energy as a 1.80Ã104 kg truck going 22.0 km/hr

Kinetic Energy of truck:

Given: Mass m = 1.80 x 10⁴ Kg; Velocity V = 22 Km/hr or 6.11 m/s

K. E = 1/2 mv²

= 1/2 (1.80 x 10⁴ Kg) (6.11 m/s) ²

K. E = 335,989 J

At what speed for a compact car to have the same Kinetic energy?

Compact car

Given: Mass m = 1200 Kg

K. E = 1/2 mv²

V = √2 K. E/m

V = √2 (335,989 J) / 1200 Kg

V = 23.66 m/s Answer