1.What\'s the difference between velocity and speed? 2. Which of the following s

Question

1.What's the difference between velocity and speed?

2. Which of the following statements are true about impulse? (Select all that apply)

3. A force of 100 N acting for 0.1 seconds would provide an impulse of:

4. Which of the following statements are true about momentum? (Select all that apply)

5. What happens to momentum if velocity is decreased?

6. A truck driving along a highway road has a large quantity of momentum. If it moves at the same speed but has twice as much mass, its momentum is:

Explanation / Answer

1) A. Velocity has direction

2)

A. Objects involved in collisions encounter impulses

B. The kg•m/s is equivalent to the units on impulse

E. In a collision, the net impulse experienced by an object is equal to its momentum change

Impulse is a vector quantity

3) D

I = Ft = 100*0.1 = 10

4)

A. The momentum of an object varies directly with the speed of the object

B. An object which is moving at a constant speed has momentum

E. Two objects of different mass are moving at the same speed; the more massive object will have the greatest momentum

F. Momentum is a vector quantity

5)

D

6)

C. Doubled

momentum p = mv So as the mass is doubled, p also doubles.

Related Questions

Navigate

• Browse (All)
• Browse 1
• Subjects

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