If you drop a stone from the edge of a cliff, its initial velocity u = 0, and it falls with acceleration g = 9.81 m s⁻². You can calculate the distance s it falls in a given time t using an equation of motion.
a. Copy and complete Table 2.3, which shows how s depends on t.
b. Draw a graph of s against t.
c. Use your graph to find the distance fallen by the stone in 2.5 s.
d. Use your graph to find how long it will take the stone to fall to the bottom of a cliff 40 m high.
Check your answer using the equations of motion.

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Time / s 1.0 2.0 3.0 4.0 Displacement / m 4.9 Table 2.3: Time t and displacement s data fo