Answer: D
Explanation:
From Newton second law of motion,
Ft = Mv
Where Ft = impulse and MV = momentum
since Ft = Mv, then,
impulse = mv
Also from the definition of pressure,
Pressure = force / area. that is,
P = F/A
make F the subject of formula
F = PA
The only option in which impulse can be expressed among the options is D which is impulse = mv