If we know an object is moving at constant velocity, we may assume:
A) the net force acting on the object is zero.
B) there are no forces acting on the object.
C) the object is accelerating.
D) the object is losing mass.
The net force on an object in the positive x direction. Consider the following statements: i) The object can be moving in the negative x direction.
Ii) The object can be speeding up.
Iii) The object can be slowing down.
Iv) The object can be moving in the positive y direction.
Which of the statements are true?
A) (i) and (ii)
B) (ii) and (iii)
C) (iii) and (iv)
D) Choose this answer if all the statements are true.
Which of the following expresses a principle which was initially stated by Galileo and was later incorporated into Newton's laws of motion?
A) An object's acceleration is inversely proportional to its mass.
B) For every action there is an equal but opposite reaction.
C) The natural condition for a moving object is to remain in motion.
D) The natural condition for a moving object is to come to rest.
A 7.0-kg bowling ball experiences a net force of 6.0 N. What will be its acceleration?
A) 0.86 m/s2
B) 6.0 m/s2
C) 7.0 m/s2
D) 42 m/s2