True or False If a net force acts on an object, the object\'s speed will change.

Question

True or False If a net force acts on an object, the object's speed will change.
True or False  During the collision of a car with a large truck, the car exerts a lesser force on the truck than the truck exerts on the car.
True or False  If two objects have the same acceleration, they are under the influence of equal forces.
True or False  If an object's speed does not change, no net force is acting on the object.
True or False  The net force which acts on an object which remains at rest is zero.

Explanation / Answer

1) true. Newton's second law states that the net force (sum of all vector forces) is equal to the object's mass times its acceleration (change in speed)

2) false. Newton's 3rd law, for every action there is an equal an opposite reaction, the force of the car on the truck is the same

3) false. If they have the same acceleration the equal thing is the coefficient of the the net force and the object's mass

4)5) both true under the same principle, newton's second law, if the a is zero the net force also is. Zero acceleration could mean or rest or constant speed

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