Final answer:
In the given question, 'g' and 'kg' are identified as units representing grams and kilograms respectively, while 'F', 'm', 'a', and 'v' are symbols used for force, mass, acceleration, and velocity in physics equations.
Step-by-step explanation:
To identify the bold letters as symbols (S) or units (U): 0.021 g F = ma v = 88 m/s 1000 kg, we look at each component individually:
- (A) g: Unit - This is the unit for grams, a measure of mass.
- (B) F: Symbol - This stands for force in physical equations.
- (C) m: Symbol - This is the symbol for mass in physical equations.
- (D) a: Symbol - In physical equations, 'a' represents acceleration.
- (E) v: Symbol - 'v' is the symbol for velocity.
- (F) kg: Unit - Kilogram is the SI unit of mass.