A_body_of_weight_mg_is_hanging_on_a_string_which_extends_in_length_by_ – McqOptions

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1.	A_body_of_weight_mg_is_hanging_on_a_string_which_extends_in_length_by_l._The_work_done_in_extending_the_string_is$
A.	mgl
B.	mgl/2
C.	2mgl
D.	0
Answer» C. 2mgl

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