If the ima of a machine is 2 and the effort force is 50 newtons, then the force applied to the resistance is 48 n 50 n 25 n 100 n

IMA stands for ideal mechanical advantage, which is the theoretical force amplification factor on an ideal mechanical device free of friction, deformations, etc.

If the applied force (effort) is 50N, then the force applied to the resistance is multiplied by the IMA=2 to get 100N.

b. lifting dumbbell weight at 20-degree angle from the body after a 45-degree angle

jupiter is the largest planet in our solar system, having a mass and radius that are respectively, 318 and 11.2 times that of earth. suppose that an object falls from rest near the surface of each planet and that the acceleration due to gravity remains constant during the fall. each object falls the same distance before striking the ground. determine the ratio of the time of fall on jupiter to that on earth.