Acar moving with a velocity of 20 meters/second has
1.8 * 105 joules of kinetic energy. what is the mass of the car?

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

Acompound machine is also called a machine. a. force b. simple c. complex d. directional

Describe uniform velocity and variable velocity in short