You wish to use a strain gauge measurement system to monitor the stress on an aluminum rod. The rod is fixed to a solid surface on one end, and the other is supported in a frictionless bearing. A rectangular aluminum lever arm is attached to one side of the cylinder and a force is directed normally into the lever. You wish to measure the strain on the rod due to the applied torque. Which gauge combination would you choose to implement.

Aperson gives a shopping cart an initial push along a horizontal floor to get it moving, and then lets go. the cart travels forward along the floor, gradually slowing as it moves. consider the horizontal force(s) on the cart while it is moving forward and slowing. which of the following statements is correct? (a) both a forward and a backward force are acting on the cart, but the forward force is larger. (b) only a forward force is acting which diminishes with time. (c) both a forward and a backward force are acting on the cart, but the backward force is larger. (d) only a backward force is acting, no forward force.