A 95.0-kg crate is being pulled across a horizontal floor by a force P that makes an angle of 34.3° above the horizontal. The coefficient of kinetic friction is 0.284. What should be the magnitude of P, so that the net work done by it and the kinetic frictional force is zero?
i could not do...
The drawing shows a baggage carousel at an airport. Your suitcase has not slid all the way down the slope and is going around at a constant speed on a circle (r = 11.0 m) as the carousel turns. The coefficient of static friction between the suitcase and the carousel is 0.910, and the angle in...
1:On earth, two parts of a space probe weigh 12900 N and 4590 N. These parts are separated by a center-to-center distance of 5.15 m and may be treated as uniform spherical objects. Find the magnitude of the gravitational force that each part exerts on the other out in space, far from any other...
Help! Kinematics in 2d Question!
Suppose the water at the top of Niagara Falls has a horizontal speed of 1.23 m/s just before it cascades over the edge of the falls. At what vertical distance below the edge does the velocity vector of the water point downward at a 49.4 degrees angle below the...