Question

An object has a total momentum of 50kg•m/.s and is directed at an angle of 30 degrees from the horizontal. What is the total momentum of the system in the x direction?

[?] kg•m/s

Answer 1

Answer:

43.3 kg m/s

Explanation:

Momentum in the x direction equals the mass times the x component of the velocity. Or more simply, it is the x component of the total momentum.

pₓ = mvₓ

pₓ = mv cos θ

pₓ = p cos θ

pₓ = (50 kg m/s) cos 30°

pₓ = 43.3 kg m/s