Question

A 30 g car rolls from a hill 12 cm high and is traveling at 154 cm/s as it travels along a 275 cm horizontal track.

What is the momentum of the car?

A: 360 g cm
B: 1848 cm2/s
C: 4620 g cm/s
D: 8250 g cm

Answer 1

The correct answer among the choices provided is option C. The momentum of the car is 4620 g cm/s. To find the momentum, mass and velocity is multiplied with each other. Thirty grams multiplied by 154 cm/s is equal to the answer.

Answer 2

By definition, the momentum is given by:

`p = m * v`
Where,
m: car mass
v: speed of the car
Substituting the values in the given definition we have:

`p = 30 * 154`
Making the corresponding calculation we have:

`p = 4620 g * cm / s`
Answer:
the momentum of the car is:

`p = 4620 g * cm / s`