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anonymous
 one year ago
A 2,900kg truck runs into the rear of a 1,000kg car that was stationary. The truck and car are locked together after the collision and move with speed 5 m/s. What was the speed of the truck before the collision?
anonymous
 one year ago
A 2,900kg truck runs into the rear of a 1,000kg car that was stationary. The truck and car are locked together after the collision and move with speed 5 m/s. What was the speed of the truck before the collision?

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Ok I get it this is a one dimensional collision

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0According to the laws of conservation of momentum all momentum is conserved no matter what

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0You have to calculate the momentum the first truck has before colliding onto the other vehicle. So 2900*v=3900*5 Where v is the veocity before the collision and righit side of the equation represents the total momentum after. But for the sake of simpicity let's leave the units out of our way

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0You isolate the v and get the velocity before collision for the 2900 kg truck
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