Question

36. Torque of force 2i+5j; about a point 2i+j-k is. 1) 2.56 units 2) 10.38 units 3) 6.42 units 4)9.64​

Answer 1

Answer: THE CORRECT ANSWER IS (-6i +2j - 8k)

Explanation:

Torques can be calculated as the cross product of force and the point , i.e. ,

torque = F × R

By calculation the following answer comes,

T = (-6i +2j - 8k)