Respuesta :
Answer:
20 m/s
Explanation:
Step 1
Find the acceleration
We calculate the acceleration of the vehicle travelled
= Speed/Time
Initial speed = 40 m/s
Tims = 5 seconds
Acceleration = 40m/s/ 5s
Acceleration = 8 m/s²
Step 2
Find the distance travelled
Distance travelled = 1/2 × a × t²
= 1/2 × 8 m/s² × 5²
= 100 meters
Step 3
Find the average speed
The average speed = Distance/time
= 100 meters/5 seconds
= 20 meters per second (m/s)
The average speed is 20 m/s.
Lets move step by step:
Step 1 : Find the acceleration
We calculate the acceleration of the vehicle travelled by using the given formula.
Acceleration= Speed/Time
Given:
Initial speed = 40 m/s
Time = 5 seconds
Acceleration = [tex]\frac{40m/s}{ 5s} =8 m/s^2[/tex]
Acceleration = 8 m/s²
Step 2 :Find the distance travelled
[tex]\text{Distance travelled}=\frac{1}{2} * a * t^2\\\\=\frac{1}{2} * 8 m/s^2 * 5^2=100 m[/tex]
Distance= 100 meters
Step 3 :Find the average speed
Average speed = Distance/time
= [tex]\frac{100 meters}{5 seconds} =20m/s[/tex]
Average speed= 20 m/s
Learn more:
brainly.com/question/10307723
