End a of the link has a downward velocity va of 7 m/sec during an interval of its motion. for the position where q = 70° determine the angular velocity w of ab and the velocity vg of the midpoint g of the link. solve the problem twice, once using the geometry of the vector polygon (graphical methods) and once using vector algebra (analytical methods).

The desk has a weight of 75 lb and a center of gravity at g. determine the initial acceleration of a desk when the man applies enough force f to overcome the static friction at a and b. also, find the vertical reactions on each of the two legs at a and at b. the coefficients of static and kinetic friction at a and b are ms = 0.5 and mk = 0.2, respectively

Kate is working on a project in her tech education class. she plans to assemble a fan motor. which form of energy does the motor convert most of its electric energy into? a. light energy b. motion energy c. sound energy d. thermal energy

Arowboat passenger uses an oar to push the boat off the dock by exerting a force of 40n for 3.0s. what impulse acts on the boat.