Question

Which quantity and unit are INCORRECTLY paired?

A. Quantity: F Unit: kg m/s
B. Quantity: J Unit: N·s
C. Quantity: W Unit: J
D. Quantity: P Unit: W
E. Quantity:E Unit: kg m2/s2

Answer 1

Force, the unit is Newton, newton is the force to accelerate a mass. so it should be kg m/s^2

joule (J) is equal to Nm not Ns

the unit of work is J and it is correct.
the unit of power is J/s which is equal to W
the unit of of energy is the same with work, which is J which equivalent to kgm2/s2