Given: Prediction 1-2: suppose the masses of two objects are the same and that o

Question

Given: Prediction 1-2: suppose the masses of two objects are the same and that object A is moving toward object B, but object B is at rest. mA=mB and (vector )vA is not = 0, (vector) vB = 0. Part A: What is your Prediction 1-2? Does one car exert a larger force on the other or are both forces the same size? Given: Interaction forces between two objects occur in many other situations besides collisions. For example, suppose that a small car pushes a truck with a stalled engine. The mass of object A (the car) is much smaller than object B (the truck). At first the car doesn't push hard enough to make the truck move. Then, as the driver pushes harder the gas pedal, the truck begins to accelerate. Finally the car and truck are moving along the same constant speed. Part B: What is your Prediction 1-7 when the truck is accelerating? Does either the car or the truck exert a large force on the other or are the forces the same size?

Explanation / Answer

In part (a) both exert same force on each other no matter what may be their size as per the newton's third law but the accelaration of the objects not only depends upon the force but also on mass so as in part (b) force exerting on each other will remain same till the contact exists and no other forces comes into picture but their accelerations will be force/their mass

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