- #1
NAkid
- 70
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Hi, I have some true and false questions for my homework and I just want to double check my answers. The statements are either always true or can be false.
1. A bicycle initially moving at a constant velocity will slow down unless a small net force is applied. FALSE (an object in motion will stay in motion unless force applied)
2. If two objects have the same acceleration they are under the influence of equal forces. FALSE (not always true, but I'm not sure)
3. If a net force acts on an object, the object's velocity will change. (TRUE; force affects acceleration, which should affect velocity)
4. During the collision of a car with a large truck, the truck exerts equal size force on the car as the car exerts on the truck. (I'm not sure; I think this has something to do with Newton's 3rd law. I know though that forces come in pairs, but of equal size?)
5. The net force which acts on an object which remains at rest is zero. TRUE
6. IF an object's speed does not change, no net force is acting on the object. TRUE (same as number 1)
Thank you!
1. A bicycle initially moving at a constant velocity will slow down unless a small net force is applied. FALSE (an object in motion will stay in motion unless force applied)
2. If two objects have the same acceleration they are under the influence of equal forces. FALSE (not always true, but I'm not sure)
3. If a net force acts on an object, the object's velocity will change. (TRUE; force affects acceleration, which should affect velocity)
4. During the collision of a car with a large truck, the truck exerts equal size force on the car as the car exerts on the truck. (I'm not sure; I think this has something to do with Newton's 3rd law. I know though that forces come in pairs, but of equal size?)
5. The net force which acts on an object which remains at rest is zero. TRUE
6. IF an object's speed does not change, no net force is acting on the object. TRUE (same as number 1)
Thank you!