Two unknown materials have a coefficient of kinetic friction of 1.3. Without any further information, which of the following options is most likely to be the
coefficient of static friction?
A. 1.2
B. 1.7
C. O
D. -1.3

Which of the following is an example of motion in two dimensions?

In order to do work, the force vector must be question 1 options: in a different direction than the acceleration vector. in a different direction than the displacement vector. in the same direction as the displacement vector and the motion. in the same direction as the acceleration vector.

When the displacement of a mass on a spring is 12a the half of the amplitude, what fraction of the mechanical energy is kinetic energy? at what displacement, as a fraction of a, is the mechanical energy half kinetic and half potential?