Question

What are rectangular unit vector?
Define Uniform Circular Motion.
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Answer 1

Answer:

The base vectors of a rectangular coordinate system are given by a set of three mutually orthogonal unit vectors denoted by , , and that are along the x, y, and z coordinate directions, respectively, as shown in the figure.

circular motion is a movement of an object along the circumference of a circle or rotation along a circular path

Answer 2

Answer:

Figure 4.18 (a) A particle is moving in a circle at a constant speed, with position and velocity vectors at times tt and t+Δt.t+Δt. (b) Velocity vectors forming a triangle. The two triangles in the figure are similar. The vector Δ→vΔv→ points toward the center of the circle in the limit Δt→0.