Razona por que un objeto que cae a la calle desde una ventana efectúa un movimiento rectilinio acelerado

The crank oa rotates in the vertical plane with a constant clockwise angular velocity ω0 of 5.6 rad/s. for the position where oa is horizontal, calculate the force under the light roller b of the 10.6-kg slender bar ab.

What is friction? how does it affect the motion of an object?

What part of the ear is names after tools, such as the hammer and the anvil?