Question

8. Forces are acting on the body as shown below
30 N
10 kg
20N
The body is at rest due to friction. The friction force is
a. 50 N from right to left b. 50 N from left to right
c. 10 N from right to left d. 10 N from left to right
9. The use of lubricants makes the surface
a. rough
b. smooth
c. very rough
10. An irregular surface will have
a. Zero friction b. Lesser friction
c. Greater friction
d none of
d​

Answer 1

Answer:

30 n answer this question

Answer 2

Answer:

Explanation:

8. ans. (c) 10 N from right to left

9. ans. (b) smooth