Answer:
The scalar speed of the particle is 5m/s,with a progressive motion
Explanation:
The general equation for the position of an object with uniform straight motion is given by the following formula:
[tex]s=s_o+vt[/tex]
so: initial position
v: speed
t: time
The equation that you have is:
[tex]s=-2+5t[/tex]
Then, by comparing the last expression with the general equation you can observe that the initial position of the particle is so = -2 and that the speed is v= 5m/s. Furthermore you can observe that when the values of time are higher the position of the particle acquires higher positive values.
hence:
The scalar speed of the particle is 5m/s,with a progressive motion