Name a machine which is used to be a multiply force.
a moveable pulley.
a moveable pendulum.
a fixed pendulum.
a fixed pulley.
A
a moveable pulley.
B
a fixed pulley.
C
a moveable pendulum.
D
a fixed pendulum.
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Solution
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A Wheel and Axle can be used to multiply Force The wheel and axle consists of a wheel or crank that is rigidly attached to an axle. A wheel and axle is similar to a lever with unequal arms. The ideal mechanical advantage of the wheel and axle is IMA=R/r where, R = radius of the wheel r = radius of the axle The wheel and axle is often used to multiply speed instead of force. Example: wheels on bicycles and motor vehicles.
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