Question

what is the equation for momentum (p)?
a. p = mv
b. p = ma
c. p = mgh
d. p = ½mv²

Explanation:

• Option A: The formula for momentum is \( p = mv \), where \( m \) is mass and \( v \) is velocity.
• Option B: \( p=ma \) is incorrect. \( F = ma \) (Newton's second law, force equals mass times acceleration).
• Option C: \( p = mgh \) is incorrect. \( mgh \) is the formula for gravitational potential energy (\( U = mgh \), where \( g \) is acceleration due to gravity and \( h \) is height).
• Option D: \( p=\frac{1}{2}mv^{2} \) is incorrect. \( \frac{1}{2}mv^{2} \) is the formula for kinetic energy (\( K=\frac{1}{2}mv^{2} \)).

Answer:

A. \( p = mv \)