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