which of the following are the correct units for force? choose all that apply. oz dyn n kg kg·m/s lb kg·m/s²…
which of the following are the correct units for force? choose all that apply. oz dyn n kg kg·m/s lb kg·m/s² tons
Answer
Brief Explanations:
-
oz (ounce): In the context of force, the ounce - force is a unit of force.
-
dyn (dyne): By definition, (1\space dyn = 1\space g\cdot cm/s^{2}), and it is a unit of force in the CGS (centimeter - gram - second) system.
-
N (newton): From Newton's second law (F = ma) ((m) in (kg), (a) in (m/s^{2})), (1\space N=1\space kg\cdot m/s^{2}), and it is the SI unit of force.
-
lb (pound): The pound - force is a unit of force.
-
(kg\cdot m/s^{2}): Using (F = ma) ((m) in (kg), (a) in (m/s^{2})), this is the derived SI unit of force (which is equivalent to the newton).
-
kg (kilogram): This is a unit of mass, not force.
-
(kg\cdot m/s): This is a unit of momentum ((p = mv), (m) in (kg), (v) in (m/s)).
-
tons: This is a unit of mass (e.g., metric ton (= 1000\space kg)), not force.
Answer:
oz, dyn, N, lb, (kg\cdot m/s^{2})