The figure below shows an initially stationary block of mass m on a floor. A force of magnitude F = 0.580·mg is then applied at upward angle ? = 16°.
(a) What is the magnitude of the acceleration of the block across the floor if (a) ?s = 0.600 and ?k = 0.500?
(b) What is the magnitude of the acceleration of the block across the floor if ?s = 0.400 and ?k = 0.300?