598Civil EngineeringMedium
The resultant of the following three couples 20 kg force, 0.5 m arm, $ ve sense 30 kg force, 1 m arm, – ve sense 40 kg force, 0.25 m arm, + ve sense having arm of 0.5 m will be________?
A45 kg, + ve sense
B20 kg, – ve sense
C10 kg, + ve sense
Correct answer
B. 20 kg, – ve sense
Explanation
The correct answer is 20 kg, – ve sense.