Question

A crowbar of length 100cm is used to lift a load of 10 kgf . It has fulcrum at a distance of 20 cm from the load .calculate
A. the mechanical advantages of crowbar .
B. the effort applied at the other hand​

Answer 1

Explanation:

given, L = 100 cm

effort arm, d1 = 100- 20 = 80 cm

load arm, d2 = 20 cm

1.Mechanical advantage , M.A. = effort armload arm = 8020/ = 4

2.effort applied is given by the formula :

effort = load/ M.A. = 10 kgf/4 = 2.5 kgf

Answer 2

Answer:

Explanation:

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