Determine if the following statements are true or false. Remember that for a sta

Question

Determine if the following statements are true or false. Remember that for a statement to be true it must be true in all cases.

1. If the acceleration of an object is zero, then the average speed must be equal to the magnitude of the average velocity for the object.

2. The speed of an object can never be negative

3. The speed of an object with a positive acceleration is always increasing.

4. The average speed of an object is always equal to the magnitude of the average velocity of the object.

5. The velocity of an object can reverse direction when the acceleration of the object is constant.

Explanation / Answer

1. True (if acceleration is zero, then the velocity of the object cannot change. it means that speed is equal to the velocity)

2. True (if you have a negative speed then it means that your moving object will slower the zero and which not possible. only velocity can be negative )

3. False (if the initial velocity of the object is negative, then the speed will actually be decreasing for sometimes until it hits zero and then increases )

4. False (if an object moves from one point to another & then back to the same point, it means that average velocity can be zero. the speed of an object will not be equal to the velocity )

5. True (assuming, we throw a ball up in the air. firstly, it has a positive velocity & then a negative velocity on its way down but the acceleration is constant )

Related Questions

Navigate

• Browse (All)
• Browse D
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.