Question

3.3.2 test (cst): forces
question 15 of 20
which quantities define momentum?
a. speed and direction
b. velocity and mass
c. velocity and weight
d. weight and speed

Explanation:

Momentum is defined by the formula \( p = mv \), where \( p \) is momentum, \( m \) is mass, and \( v \) is velocity. Velocity is a vector quantity (has magnitude and direction), and mass is a scalar quantity. Weight is the force due to gravity (\( W=mg \)) and is not part of the momentum formula. Speed is a scalar (only magnitude) and also not part of the momentum formula.

Answer:

B. Velocity and mass