An object's period of oscillation can always be used to solve for which 2 points variable? *
Velocity
Weight
Frequency
Momentum

Frequency

Explanation:

A period is the number of revolutions in a minute.

Also, frequency can be defined as number of oscillation per unit time.

Mathematically, frequency is given by the formula;

Thus, we can deduce that frequency of an oscillation is the inverse of the period (time) of oscillation.

Mathematically, period is expressed as;

This ultimately implies that, an object's period of oscillation can always be used to solve for frequency.

where are the vectors ?

b. lifting dumbbell weight at 20-degree angle from the body after a 45-degree angle