Question

Solve the above question....​

Answer 1

Answer:

The resultant torque on the body is 10 N·m in clockwise direction (-k).

Explanation:

Formula for torque is τ = r × F

where r is perpendicular distance between center and point of application of Force.

• The force at point D won't produce any torque since, it is on the line joining the center O (r=0) i.e., perpendicular distance is zero.
• The forces at points C and A will try to rotate the body in counter clockwise(+k).

• The forces at points B and E will tend to rotate the body in clockwise manner(-k).

Hence, resultant torque

τ = (5×50) + (4×30) - (1×20) - (3×80) (-k)

τ = 150 + 120 - 20 - 240 (-k)

τ = 10 (-k) N·m

Answer 2

Answer:

It was a very old book. (Write in Simple Present tense)