The uniform 38-kg bar OB is secured in the vertical position to the accelerating frame by the hinge at O and the roller at A. If the horizontal acceleration of the frame is a = 20 m/s2, compute the force FA on the roller and the horizontal component Ox (positive if to the right, negative if to the left) of the force supported by the pin at O.

the force required to move the cart is divided by three or 33.33 n.

igneous rocks also form where plates converge. the subducting plate melts as it sinks into the crust of the earth, and the melt rises into the overriding plate forming volcanoes. metamorphic rocks are formed mainly in the lithosphere, wherever there is high pressure and high temperature. -woods