Indicate whether the following statements are always true or can be false. An ob
ID: 1412404 • Letter: I
Question
Indicate whether the following statements are always true or can be false. An object's velocity will change if a net force acts on the object. A motorcycle initially moving at a constant velocity will slow down unless a small net force is applied. If an object's speed does not change, no net force is acting on the object. If two objects are under the influence of equal forces, they have the same acceleration. During the collision of a car with a large truck, the truck exerts an equal size force on the car as the car exerts on the truck. The net force which acts on an object which maintains a constant velocity is zero.Explanation / Answer
1)
True. If a nonzero net force acts on a body, the velocity of the object will change in accordance with F=ma
2)
True, if it is assumed that frictional forces and aerodynamic drag are not zero. If there are no forces that retards motion, then the bycycle will not slow down.
3) True
4) false, it depends on mass of the objects.
5) False, equal and opposite forces
6) True, if F = ma and due to constant velocity = 0, then F=0.