Question

A system of pulleys is used to raise a load of bricks that weighs 1,700 newtons. The force applied to the pulley is 340 newtons. What’s the mechanical advantage of this machine?
A.
1
B.
2
C.
5
D.
10

Answer 1

Answer:

Answer:

1. Inside buildings. You might have noticed that large office buildings, stores, hospitals, and other many other buildings have convex mirrors in the corners.

2. Sunglasses. We might have used sunglasses many times.

3. Vehicle mirrors.

4. Magnifying glasses.

5. For security purposes.

6. Street light reflectors.

Hope it can help you...