120 miles because of a car is going at 60 miles per 1 hour, 2 hours would result in 120 miles
If u is about 0.2 (no unit) then the whole left side is zero.
Had to look for the options and here is my answer. What happens when the fluid discharge of an air-operated reciprocating pump is shut, this will cause the pump to OVERSTROKE. Overstroke happens when the engine is switching in a normally-closed manner.