At what speed does a 1300 kg compact car have the same kinetic energy as a 1.8×104kg truck going 22 km/hr?
Known variables:
mass (m1): 1300kg
v2=22km/hr
m2= 1.8e4
1/2mv2 = 1/2mv2
(1300kg)(?)2 = (1.8e4)(222)
(?)2=8712000/1300
Solve for the Unknown
(?)2 = 6701.53
√6701.53
Vc= 82 km/hr
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