Question

The coordinates of object with respect
to a frame of reference att = 0 s are
( , , ) - 1 0 3 . Ift = 5 s, its coordinates are
( , , ) - 1 0 4 , then the object is

Answer 1

Explanation:

|R| = √(-10)^2 + (5)^2 + (-3)^2

|R| = √100 + 25 + 9

|R| = √100 + 25 + 9

|R| = √134

Answer 2

The object is motion along $Z$-axis.

Explanation:

At $t=0$$s$, position of an object is $(-1,0,3)$ and at $t=5s$ its coordinate is $(-1,0,4)$. so, there is no change in $x$ and $y$ coordinates while $z$-coordinate changes changes from $3$ to $4$. so, the object is in motion along $Z$-axis.