In this drawing of a computer table what sort of force is experienced by A? Tension or compression?

What force is present in B?

What force is present in C?

Which sort of motion is shown by this animation? Linear, rotary, reciprocating or oscillating.

Which sort of motion is shown by this animation? Linear, rotary, reciprocating or oscillating.

Which sort of motion is shown by this animation? Linear, rotary, reciprocating or oscillating.

Which sort of motion is shown by this animation? Linear, rotary, reciprocating or oscillating.