Question

an object of mass 4.0kg is moving with a velocity of 3.0m/s in a straight line. what is the momentum of the object?
a. 1.3kgm/s
b. 0.75kgm/s
c. 24kgm/s
d. 12kgm/s

Explanation:

Step1: Recall the formula for momentum

Momentum \( p = m\times v\), where \(m\) is mass and \(v\) is velocity.

Step2: Substitute the given values

Given \(m = 4.0\space kg\) and \(v=3.0\space m/s\), then \(p=(4.0\space kg)\times(3.0\space m/s)\)
\(p = 12\space kg\cdot m/s\)

Answer:

D. \(12\space kg\cdot m/s\)