8% part (g) after the crate begins to move, we reduce the force on the rope. write an equation for the force exerted upwards by the rope at which the moving crate stops accelerating and moves at a constant speed. give your equation in terms of variables from the problem statement together with g for acceleration due to gravity and μs for the coefficient of static friction.

Which of the following represents an upright image? a. -do b. +m c. -m d. +do

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

Aperson stands on a platform, initially at rest, that can rotate freely without friction. the moment of inertia of the person plus the platform is ip. the person holds a spinning bicycle wheel with its axis horizontal. the wheel has moment of inertia iw and angular velocity ωw. take the ωw direction counterclockwise when viewed from above. part a what will be the angular velocity ωp of the platform if the person moves the axis of the wheel so that it points vertically upward?