1. In order not to slow down, a bicycle moving at a constantvelocity needs a sma

Question

1. In order not to slow down, a bicycle moving at a constantvelocity needs a small net force applied.
2. If a net force acts on an object, the object's velocity willchange.
3. If two objects are under the influence of equal forces, theyhave the same acceleration.
4. The net force which acts on an object which maintains a constantvelocity is zero.
5. During the collision of a large truck with a car, the car exertsan equal size force on the truck as the truck exerts on thecar.
6. If a net force acts on an object, the object's speed willchange.

I thought the answer was...T,T, F,F,F,T...but it's not.

Explanation / Answer

1. In order not to slow down, a bicycle moving at a constantvelocity needs a small net force applied.
answer: T
2. If a net force acts on an object, the object's velocity willchange.
Answer: T
3. If two objects are under the influence of equal forces, theyhave the same acceleration.
answer: F : their mass may not be the same so they may not have thesame acceleration
4. The net force which acts on an object which maintains a constantvelocity is zero.
Answer:T , a=0, =>F=0
5. During the collision of a large truck with a car, the car exertsan equal size force on the truck as the truck exerts on thecar.
Answer:T   -- Newton's third law
6. If a net force acts on an object, the object's speed willchange.
answer:T

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