Vectors - Assignment 1

Vectors - Assignment 1

An object travels in a straight line 300m in 20s.

a) Calculate its average velocity.

Below is a displacement time graph for its journey.

b) Describe how the velocity of the object changes during the 20s period.

Imagine we want to know the velocity of the object at 10s. What we could do is calculate the average velocity between 9s and 11s on the graph.

c) What value does this give for the average velocity between 9s and 11s?

d) Explain why we would get a better answer if we calculated the velocity between 9.5s and 10.5s.

e) How could we get a much more accurate answer for the actual velocity at 10s?

Velocity can be expressed as and if t approaches 0 then

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