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Question
Class II levers are designed to have :
(a) M.A = V. R. (b) M.A > V. R.
(c) M.A. > 1 (d) M. A. < 1
Class II levers are designed to have :
(a) M.A = V. R. (b) M.A > V. R.
(c) M.A. > 1 (d) M. A. < 1
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Solution
(c) M.A. > 1
Resistance (or load) in the middle: the effort is applied on one side of the resistance and the fulcrum is located on the other side, for example, a wheelbarrow, a nutcracker, a bottle opener or the brake pedal of a car. Load arm is smaller than the effort arm. Mechanical advantage is always greater than 1. It is also called force multiplier lever.
Resistance (or load) in the middle: the effort is applied on one side of the resistance and the fulcrum is located on the other side, for example, a wheelbarrow, a nutcracker, a bottle opener or the brake pedal of a car. Load arm is smaller than the effort arm. Mechanical advantage is always greater than 1. It is also called force multiplier lever.
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