The velocity-time graph (v-t) of a car moving along a level road is shown below.The average speed of the car in the time interval 0 to 8 s is about
Answers
Answered by
1
Answer:
Average speed = total distance/total time
the point at which the line intersects the x-axis can be calculated with the help of similarity of triangles
10/x=5/5-x
x=10/3s
area of the bigger triangle=1/2*10/3*10=100/6m
area of the smaller triangle=1/2*5/3*3=25/6m
area of rectangle=5*3=15m
total area= 100/6+25/6+15=215/6
Average speed=215/6*8=4.479m/s
Explanation:
Similar questions