Question

1. As time increases, what happens to the speed?2. What is the speed at 5 s?3. Assuming constant acceleration, what would be the speed at 14 s?4. At what time would the object reach a speed of 45 km/hr?5. What is the object's acceleration?6. What would the shape of the graph be if a speed of 50.0 km/hr is maintained from 10s to 20 s?7. Based on the information in Problem 6, calculate the acceleration from 10s to 20 s.8. What would the shape of the graph be if the speed of the object decreased from 50.0 km/hr at 20 s to 30 km/hr at 40 s?9. What is the acceleration in Problem 8?

Answer 1

Step-by-step explanation:

1) Looking at the data, as the time is increasing, the speed is increasing

2) We would calculate the slope of the graph. The formula for calculating slope is expressed as

slope = (y2 - y1)/(x2 - x1)

From the data,

when x1 = 0, y1 = 0

when x2 = 2, y2 is 10

slope = (10 - 0)/(2 - 0) = 10/2 = 5

The equation of the line is e