Three forces act on the body: 0.4 N to the right side and up at the angle of 30° to the horizon, 0.7 N to the right side and up at the angle of 45°, and 0.8 N to the right side and up at the angle of 60° to the horizon. Find the projection of the resultant of these forces onto the vertical axis.

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.