Alan will use a compound pulley to lift a crate from the floor of his garage to a storage shelf. The shelf is 3.5 meters above the
floor. Alan pulls 10.5 meters of rope to lift the crate. Which statement is correct? (1 point)
O Alan uses three times the force he would have used without the compound pulley.
O Alan uses the same amount of force with the compound pulley as he would without it.
O Alan will save work by using the compound pulley.
O Alan uses one-third the force he would have needed without the compound pulley.