To pull apart two pieces of wood, you can apply a force of 50 N to a lever. The lever applies a force of 640 N. What is the mechanical advantage of the lever?
A.13
B.17
C.0.08
D.32,000

The motor m applies a time-varying force of f (200 t) n, where t is in seconds. box b with mass 200 kg starts from rest, and the coefficients of kinetic and static friction are 0.2 and us 0.3 the acceleration due to gravity is g 9.8 m/s2 b 300 a) find the time ' when the box starts to move. b) calculate the speed of the crate at 3 s c) calculate the power delivered by the motor at t 3 s

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We put a force of 50n on an object and the acceleration is 100 m/s². what is the mass of the object?