Un vector a de 10 unidades con un ángulo de 43° respecto al eje x positivo y un vector b de 8 unidades en el eje negativo de las x pero positivo en las y con 25° con respecto al eje de las x. Luego súmalos. ​

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

When you jump from an elevated position you usually bend your knees upon reaching the ground. by doing this, you make the time of the impact about 10 times as great as for a stiff-legged landing. in this way the average force your body experiences is a) less than 1/10 as great. b) more than 1/10 as great. c) about 1/10 as great.d) about 10 times as great.

What is the coefficient of kinetic friction μk between the block and the tabletop?