For the compressor linkage shown in Figure P6.19, use the relative velocity method to determine the linear velocity of the piston as the crank rotates clockwise at 950 rpm.

Expanded.4 deals with the conservation of momentum principle. Using the conservation of momentum principle to solve this problem is mandatory. Solution using other approaches will be automatically considered false. For the problem related to Expanded.4, sketches of the system showing: • the respective initial and final velocity and position coordinates and the frame of reference considered • the forces acting on the system of considered, in other words, a free body diagram (FBD) are mandatory. Their absences will automatically make the problem false. A B F 300 mm 600 mm Knowing the angular velocity of rotation of the bob, 4-kg, is 3 rad/s when the length of the rope is 600mm and the angle is 44°, what is the angular velocity of the rope if the length of the rope becomes 300mm while the angle reduces of 6°?

.65 m- .32 m .1 m↑ .4 m .1 m .6 m .2 m 35° .3 m .2 m E.37 m- For the hand-operated shear shown in Figure P6.31, use the relative velocity method to graphically deter- mine the linear velocity of the blade as the handle is rotated at a rate of 2 rad/s clockwise. Also determine the linear velocity of point X.

Expanded.3 deals with the conservation of momentum principle. Using the conservation of momentum principle to solve this problem is mandatory. Solution using other approaches will be automatically considered false. For the problem related to Expanded.3, sketches of the system showing: • the respective initial and final velocity and position coordinates and the frame of reference considered • the forces acting on the system of considered, in other words, a free body diagram (FBD) are mandatory. Their absences will automatically make the problem false. The automobile has a weight 3,158-lb and travels forward at 8ft/s when it crashes into the wall and stops. The impact occurs in 0.04 s. If the coefficient of kinetic friction between the wheels and the pavement is 0.42, and the brakes are applied, what is then the average impulsive force?

P

Instantaneous Center Method—Analytical For the reciprocating saw shown in FigureP6.21, use the instantaneous center method to analytically determine the linear velocity of the blade as the crank wheel rotates counter-clockwise at 1375 rpm Ans. 91.11 in/s

The Wright Brothers designed an engine and propeller that would produce enough forward motion to lift a simple light airplane. The 3 meter diameter blade rotated at a constant 330 rotations per minute (RPM). How does the RPM of the tip of one blade compare to the RPM of the middle of the one blade (halfway towards the center of the propeller)? The RPM is twice as much. The RMP is the same. The RPM is half as much. The RPM is one quarter as much.

Do part B and DO NOT FIND THE GRAVITATIONAL TORQUE, FIND THE ANGULAR ACCELERATION.

For the hand-operated shear shown in Figure P6.31, use the relative velocity method to graphically deter- mine the angular velocity of the handle required to have the blade cut through the metal at a rate of 3 mm/s. 175 mm pt X 40° 30 mm 100 mm 60 mm 25° 75 mm