Consider a block of mass 9.81kg on an inclined surface of the coefficient of friction 0.15 and angle of inclination 30 degrees. What will be its acceleration on the inclined plane if acceleration due to gravity is 9.81 m/s^2?

› Category: Questions › Consider a block of mass 9.81kg on an inclined surface of the coefficient of friction 0.15 and angle of inclination 30 degrees. What will be its acceleration on the inclined plane if acceleration due to gravity is 9.81 m/s^2?
0 Vote Up Vote Down
Editor">Editor Staff asked 1 year ago

Consider a block of mass 9.81kg on an inclined surface of the coefficient of friction 0.15 and angle of inclination 30 degrees. What will be its acceleration on the inclined plane if acceleration due to gravity is 9.81 m/s^2?
 
(a) 3.63 m/s^2
 
(b) 4.63 m/s^2
 
(c) 9.81 m/s^2
 
(d) 10 m/s^2
 
I have been asked this question in class test.
 
My doubt is from Friction topic in section Work, Energy and Power of Physics – Class 11
Select the correct answer from above options 
Interview Questions and Answers, Database Interview Questions and Answers for Freshers and Experience

Question Tags:
1 Answers
0 Vote Up Vote Down
Editor">Editor Staff answered 1 year ago

The correct answer is (d) 10 m/s^2
 
Explanation: a = g (sin θ – u cos θ)
 
a = 9.81 (sin(30) – 0.15 cos(30))
 
 = 9.81 x (0.5 – 0.13)
 
 = 3.63 m/s^2.

Articles: 40722

Related Posts