In Question 5, assume that friction is so small that it can be gnored 5. (6 pts)

Question

In Question 5, assume that friction is so small that it can be gnored 5. (6 pts) The spring scale in the diagram reads 8.0 N. If the cart moves toward the right with an acceleration also toward the right of 2.50 m/s, what is the mass of the cart? Show your calculations and explain. 3 ON: ((2.50 m15) In Question 6 friction may not be ignored 6. (6 pts) The force applied to the cart in Question 5 by spring scale FA is still 8.0 N. The cart now moves toward the right with a constant velocity. What are the magnitude and direction of the frictional force? Show your calculations and explain your reasoning. Sinex Hh vElocis ofH COV 5 Con Stant thLE S no accevAtionus re 's no Force. Fere of friction FriCtion- FA 7. (12 pts) The force applied to the cart in Question 5 by spring scale Fa now is 12.0 N I force has the same magnitude as in Question 6. The cart moves to the left and accelerates to the left at a rate of 1.0 m/s. What is the magnitude of Fo? onstant spuont forco ?? divertion to rign

Explanation / Answer

5 and 6 are correct.

7) Net force acting on the cart,

Fnet = Fa - 12 - 8

m*a = Fa - 12 - 8

3.2*1 = Fa - 12 - 8

Fa = 3.2 + 12 + 8

= 23.2 N

Related Questions

Navigate

• Browse (All)
• Browse I
• Subjects

---

---

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