12. Which of the following is the use of pulley?
A. It is used to lift loads, apply, the effort distance and height forces and transmit
power
B. It lessens the effort exerted in transporting weight over a distance or height.
C. It adds rnore force to the effort as it goes through a longer distance.
D. It applies effort to the large outer wheel of the steering wheel.
13.how is fixed pulley used
A.it is hung on the rope and hooked to a resistance B.it generally hong making the wheel stationary C.it has
a groove that prevenst the rope from slippling D.it combines the direction changing ability of the muvable pulley
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Answer:
12.A.
13.D.
Explanation:
correct me if I'm wrong
Answer:
Which of the following is the use of pulley?
12. A
13. A