The following 3 questions refer to the collisions between a car and a truck whos
ID: 1965939 • Letter: T
Question
The following 3 questions refer to the collisions between a car and a truck whose weight is much greater than that of the car. For each description of a collision below, choose the one answer from the possibilities that best describes the size (or magnitude) of the forces between the car and the truck.A. They are both moving at the same speed when they collide.
A.None of these answers correctly describes the situation.
B.The car exerts a greater force on the truck than the truck exerts on the car.
C.Not enough information is given to pick one of the answers above.
D.The truck exerts a greater force on the car than the car exerts on the truck.
E.Neither exerts a force on the other; the car gets smashed simply because it is in the way of the truck.
F.The truck exerts the same force on the car as the car exerts on the truck.
B. The car is moving much faster than the heavier truck when they collide.
A.The truck exerts a greater force on the car than the car exerts on the truck.
B.Not enough information is given to pick one of the answers above.
C.None of these answers correctly describes the situation.
D.The truck exerts the same force on the car as the car exerts on the truck.
E.Neither exerts a force on the other; the car gets smashed simply because it is in the way of the truck.
F.The car exerts a greater force on the truck than the truck exerts on the car.
C. The heavier truck is standing still when the car hits it.
A.The truck exerts the same force on the car as the car exerts on the truck.
B.Not enough information is given to pick one of the answers above.
C.Neither exerts a force on the other; the car gets smashed simply because it is in the way of the truck.
D.None of these answers correctly describes the situation.
E.The car exerts a greater force on the truck than the truck exerts on the car.
F.The truck exerts a greater force on the car than the car exerts on the truck.
Explanation / Answer
A). They are both moving at the same speed when they collide. ans: F.The truck exerts the same force on the car as the car exerts on the truck.(action-reaction) B). The car is moving much faster than the heavier truck when they collide. ans: D.The truck exerts the same force on the car as the car exerts on the truck. C). The heavier truck is standing still when the car hits it. ans: D.None of these answers correctly describes the situation. ( car hits it which means car is having a velocity so momentum of car = mv .if car hits the truck momentum will be transfered from car to track .which will result in motion of truck . but in the que track stands still.which means some other force holding track from moving it's position.it could be friction , or wall behind the track.)
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