Mar 18, 2009 #1 B bfl1806 New member Joined Feb 24, 2009 Messages 3 Reaction score 0 Points 1 ...1.6×104 kg truck going 22 km/hr? At what speed does a 1000 kg compact car have the same kinetic energy as a 1.6×104 kg truck going 22 km/hr?
...1.6×104 kg truck going 22 km/hr? At what speed does a 1000 kg compact car have the same kinetic energy as a 1.6×104 kg truck going 22 km/hr?
Mar 18, 2009 #2 G GuruEddie1 New member Joined Mar 18, 2009 Messages 1 Reaction score 0 Points 1 1/2mv^2 = 1/2mv^2 (1000kg)(?)^2 = (1.6e4)(22^2) the speed is 88km/hr, which makes sense because it should have to go faster becuase of its lack of mass.
1/2mv^2 = 1/2mv^2 (1000kg)(?)^2 = (1.6e4)(22^2) the speed is 88km/hr, which makes sense because it should have to go faster becuase of its lack of mass.
Mar 18, 2009 #3 G GuruEddie New member Joined Mar 18, 2009 Messages 1 Reaction score 0 Points 1 1/2mv^2 = 1/2mv^2 (1000kg)(?)^2 = (1.6e4)(22^2) the speed is 88km/hr, which makes sense because it should have to go faster becuase of its lack of mass.
1/2mv^2 = 1/2mv^2 (1000kg)(?)^2 = (1.6e4)(22^2) the speed is 88km/hr, which makes sense because it should have to go faster becuase of its lack of mass.