Based on the information given in problem 4, the maximum height the ball can rea

Question

Based on the information given in problem 4, the maximum height the ball can reach is 39.14 m 31.47 m 11.47m 5.14 m Two blocks of masses m_1 and m_2, are in contact on a level frictionless surface. A force F can be applied edher on the larger block of mass m_1 (figure 1), or to the small block of m_2 (figure 2). If the magnitude of F is the same in both cases, the force exerted on the small block by the larger one is the same in booth figure 1 and 2 is larger in figure 1 is larger in figure 2 the answer depends on the magnitude of the force F A box weighting 200 N is pulled at constant speed along a level floor by a horizontal force F=80 N as shown in the figure. The coefficient of kinetic friction is 0.4 0.5 0.6 0.8 A block of mass m kg is pushed up against a wall by a force F that makes an angle theta with the horizontal as shown in the figure. The normal force exerted by the wall on the object is F F cos theta. mg cos theta mg

Explanation / Answer

6. Correct. According to Newton's 3rd law

7. Correct

F-uN=0 (because v is constant a=0)

u=F/N=F/W=80/200=0.4

8 Correct

The normal is equal to the horizontal projection of the force, using trigonometric relation

F=mgcos(O)

Related Questions

Navigate

• Browse (All)
• Browse B
• Subjects

---

---

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