Kinetic energy is: which one is the correct answer A, B,C, or D A. inversely proportional to mass and velocity B. directly proportional to mass and inversely proportional to velocity C. inversely proportional to mass and directly proportional to velocity D. directly proportional to mass and velo

A

Explanation: because The kinetic energy of a moving object is directly proportional to its mass and directly proportional to the square of its velocity. The kinetic energy of an object can be changed by doing work on the object.

unlike poles attract

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