A block of mass 5.50 kg slides with an acceleration of 1.21 m/s down a ramp inclined at 28.0' to the horizontal. What is the coefficient of sliding friction between the block and the ramp surface? m =5.50 kg a =1.21 m/'s2 L = ? 28.0'A wheel-and-axle system. with diameters shown below, is used to lift various objects. A 625 N force is used on the small wheel in order to raise an object hung from the large wheel. a} How large is the mass of the object being lifted? b) What is the mechanical advantage of this system? Using a free body diagram, determine the net force (magnitude and direction) acting on a 1500 kg object pushed West along a level surface with a force of 122 N and a force of friction of 57 N