Question: A large ball is blocking a door as shown in the photo below. Calculate: a . The reaction force applied by the hinge to the

A large ball is blocking a door as shown in the photo
below. Calculate:
a. The reaction force applied by the hinge to the door.
b. The minimum friction coefficient required to hold
the ball in place (assume the friction coefficient
between the ball and wall is the same as for the ball
and door.)
Note that you will need to draw separate FBD of both
the door and the ball. Also, you can treat the ball as a 2-
force member.
A large ball is blocking a door as shown in the

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