4. A specific net force is applied to an object, and it causes a certain acceleration. If the same net force is
applied to a new object with four times the mass, what is the acceleration of the more massive object?

Part of a control linkage for an airplane consists of a rigid member cb and a flexible cable ab. if a force is applied to the end b of the member and causes it to rotate by θ = 0.5°, determine the normal strain in the cable. originally the cable is unstretched.