a pulley system is marked with the mechanical advantage of 2.50 worker applies 450 N to the pulley in an attempt to lift a sound system with a 1500 N weight. Of this task we could say that A. It is impossible to lift that much weight with the system so no movement should be observed B. It is impossible of the sound system using a pulley system you must use a third class lever, C. the mechanical advantage must be incorrect as the mechanical advantage does not have decimals. D. the work done by the worker will be lower than the work done by the pulley system, while lifting the sound system.
