The elements of a power hacksaw are shown in the figure. The saw blade is mounted in a f...

The elements of a power hacksaw are shown in the figure. The saw blade is mounted in a frame which slides along the horizontal guide. If the motor turns the flywheel at a constant counterclockwise speed of 60 rev/min, determine the acceleration of the blade for the position where θ = 90°, and find the corresponding angular acceleration of the link AB.