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13. It is a simple machine found in the flag poles which is generally used to change direction or point
of application to lift loads or objects.
A. lever
B. pulley
C. wedge
D. wheel and axle​


Sagot :

Answer:

B

Explanation:

pulleys

The pulley helps you to move the load or change direction of the force. Some examples of pulleys include cranes, flag poles, and window blinds.