A rock is on a slope at an angle of 34.5degree, with respect to the horizontal.

Question

A rock is on a slope at an angle of 34.5degree, with respect to the horizontal. The mass of the rock is32.7 kg.
1.What is the normal force of the slope on the rock?
2.Assuming there is no motion what is the friction on the rock?
3.What is the maximum static friction if the coefficient of staticfriction is 0.300?
4.What is the kinetic friction if the coefficient of kineticfriction is 0.110?
5.What is the acceleration of the rock down the slope?
Please help me with this question, thanks a lot A rock is on a slope at an angle of 34.5degree, with respect to the horizontal. The mass of the rock is32.7 kg.
1.What is the normal force of the slope on the rock?
2.Assuming there is no motion what is the friction on the rock?
3.What is the maximum static friction if the coefficient of staticfriction is 0.300?
4.What is the kinetic friction if the coefficient of kineticfriction is 0.110?
5.What is the acceleration of the rock down the slope?
Please help me with this question, thanks a lot

Explanation / Answer

A rock is on a slope at an angle of 34.5degree, with respect to the horizontal. The mass of the rock is32.7 kg.
1.What is the normal force of the slope on the rock?
32.7*9.8cos34.5=264.09N


2.Assuming there is no motion what is the friction on the rock?
friction=32.7*9.8sin34.5=181.51N
3.What is the maximum static friction if the coefficient of staticfriction is 0.300?
0.3*264.09=79.227N
4.What is the kinetic friction if the coefficient of kineticfriction is 0.110?
0.11*264.09=29.04N
5.What is the acceleration of the rock down the slope?
a=g(sin34.5-0.11cos34.5)=4.6623m/sec2

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

---

---

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