Question

a horse runs 1,500 m in 2 min. 4 pt q11: find the total speed in m/s. show your work. include all units. 5 pt q12: find the total velocity in m/s. show your work. include all units.

Explanation:

Step1: Convert time to seconds

Since 1 minute = 60 seconds, 2 minutes = 2×60 = 120 s.

Step2: Calculate speed

The formula for speed is $v=\frac{d}{t}$, where $d$ is distance and $t$ is time. Given $d = 1500$ m and $t=120$ s, then $v=\frac{1500}{120}=12.5$ m/s. In the case of speed calculation (Q11), as long as the magnitude of the rate of change of position is considered. For velocity (Q12), if the motion is in a straight - line and no direction change is mentioned, the magnitude of velocity is the same as the speed when the motion is in a straight - line. So the magnitude of velocity is also 12.5 m/s. Assuming the horse moves in a straight - line, the velocity is 12.5 m/s in the direction of its motion.

Answer:

Q11: 12.5 m/s
Q12: 12.5 m/s in the direction of the horse's motion