Question

b) A velocity time graph of a car is plotted below. Observe the graph to answer thefollowing questions:(i) Find the acceleration during the first 4 seconds of motion.(ii) Find the average velocity during the first 4 seconds of motion(iii) Find the average speed of the car over the 10 seconds.​

Answer 1

Answer:

An object moving along a straight line is slowing at a constant acceleration rate. Several data points are collected in the middle of the slowing process, for the object's velocity as a function of time. The data points are shown on the graph below, along with a best-fit line that has been inserted to extrapolate data for the entirety of the object's motion.

In using the graph to analyze the object's motion, several different quantities about the best fit line can be calculated.

Which quantities would be equal to the object's initial velocity, and to the object's displacement, during its slowing motion?

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