answer

In this figure, an object located at the origin has a rod attached. In this representation, the z-axis is oriented into and out of the page. If the object is constrained to rotate about the z- describing the torque on the object due to a downward force F must also consider the r, which in this case points from the origin to the point at which the force is applied. The units for torque are newton meters, or N - m, which we know based on our knowledge of the SI units for force and distance. A general convention is that the direction of rotation is considered positive if it is in the counterclockwise direction and negative if it is clockwise. Thus, in the earlier example, the torque on the rock when it is being lifted is positive. As with fi the torques acting on an object sum, and if the net torque is nonzero, the rate of rotation changes, i.e., the object experiences an angular acceleration. Let's consider a simple case of torque. In the figure below, an object has rods attached to either side. On the right side, a force s = 400 N is applied downward at a distance ry= 3.00 from the origin. On the other side of the object, a force F2 = 150 N is applied downward at a distance of r,= 2.00 m to the left of the origin. If the object is constrained to rotate arounc z-axis, what is the magnitude of the net torque (in N - m) on the object? y 1100 X x How do the applied force and the distance from the object relate? N - m