1) A 75 kg mass hanging by
a cord is held stationary midway between two supports, as shown.
2) A uniform beam of 25 kg
rests on supports P and Q.
what force is exerted by
support Q on the beam?
3) A mass
suspended by a string is held 24o from the vertical by a force of 13.8 N as shown
. Find the mass.
diagram shows a horizontal beam of negligible mass. The wall exerts a 42.0 N
horizontal force on the lever. Find the weight of the load.
cylindrical wheels of radii r1 = 30 cm and r2 = 50 cm are attached to
each other on an axle that passes through the center of each. Calculate the net torque
on the wheel due to the two forces.