2. A 100-N force is applied to the end of a 50-cm wrench and makes an angle of 45 with the handle of the wrench

a) What is the torque on a bolt at the other end of the Wrench?

b) What is the maximum torque that can be exerted by a 100 -N force on this wrench and how can it be achieved?

3. Determine the area of a triangle with vertices A(2, - 1, 4), B(3, 1, - 1), and C(1, 0, 2)

4. Given the points A(1,2), B(5,4), find the angle AOB where O is the origin of the cartesian system