A ball has a velocity of 11 m/s and a momentum of 47 kgm/s, what is its mass? Show your given, required, and solutions.

Explanation:

p=m x v

to find the mass:

m= p/v

=47/11

=4.27 kg

see the picture for the vector

the magnitude of the vector by pythagorean theorem

r = √( (-10)^2 + (3)^2 ) = √109

magnitude = √109 units

the direction angle between vector and x-axis is

tan^(-1)(3/10) = 16.699

so the direction is approximately 16.7 degrees north of west