Question

please give me the answer's !!​

Answer 1

Answer for option a) is attached above.

c) mechanical age is

M.A = effect arm / load arm = 9 cm / 5 cm

c = 1.8

Relation between MA efficiency and V.R is

M.A = n×V.R

M.A = V.R = 1.8 ( n=100% = 1 )

D) When efficiency reduces to 50%, its mechanical advantage reduces however, its velocity ratio remains the same. So,

M.A. = 0.5 x 1.8 = 0.9

Answer 2

Answer:

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