Let r=OP=4i. Which is greater​ (in magnitude): the torque about O when a force F=4i-3k is applied at P or the torque about O when a force F=3i-4j is applied at​ P?

17-102. The 25-lb slender rod has a length of 6 ft. Using a collar of negligible mass, its end A is confined to move along the smooth circular bar of radius 3 V2 ft. End B rests on the floor, for which the coefficient of kinetic friction is µg = 0.4. If the bar is released from rest when 6 = 30°, determine the angular acceleration of the bar at this instant. 6 ft 3N2 ft

76. Round and Round Little Jay is enjoying his first ride on a merry-go- round. (He is riding a stationary horse rather than one that goes up Av at 4 = 0 %3D and down.) A schematic view of the merry-go-round as seen from above is shown in Fig. 11-47a with a conve- nient coordinate system. A bit after the merry-go-round has started and is going around uniformly, we start our clock. Little Jay's position and velocity at time t dot and arrow. At t = 0 is the net force acting on Jay equal to zero? If it is, write "Yes" and give a reason why you think so. If it isn't, write “No" and specify the type of force and the object responsible for exerting it. FIGURE 11-47a Problem 76. 0 are shown as a %3D %3D For the next six parts, specify which of the graphs shown in Fig. 11-47b could represent the indicated variable for Jay's motion. If none of the graphs work, write "N." (A (B) 0. -Time Time 0. (D) 0. Time 0 Time E F Time Time FIGURE 11-47b Problem 76. (a) The x-component of Jay's velocity (b)…