What velocity must a 1340kg car have in order to have the same momentum as a 2680kg truck traveling at a velocity of 15 m/s to the west

Let v1, v2, w be three linearly independent vectors in r 3 . that is, they do not all lie on the same plane. for each of the following (infinite) set of vectors, carefully sketch it in r 3 , and determine whether or not it is a vector space (i.e., a subspace of r 3 ). explain your reasoning

Gordon is going for a run through the park, but it is cold outside. the low outside temperature could affect his personal safety.

Aball is thrown horizontally from a cliff at 8m/s .in what direction is the ball moving 2s later?