A motorcycle travels 710 m at a constant speed in 87s. (i) Calculate the speed of the motorcycle. Give your answer rounded to 1 decimal place.

The distance travelled is $d = 710\, \text{m}$.
The time taken is $t = 87\, \text{s}$.
The formula for speed is $s = \frac{d}{t}$.

The speed of the motorcycle is $\boxed{\text{8.2 m/s}}$.

b) (ii)
To draw the speed-time graph for the motion of the motorcycle:

• The horizontal axis (x-axis) represents time in seconds (s).
• The vertical axis (y-axis) represents speed in meters per second (m/s).
• Since the motorcycle travels at a constant speed of $8.2\, \text{m/s}$ for $87\, \text{s}$, the graph will be a horizontal line.
• The line should start at $(0\, \text{s}, 8.2\, \text{m/s})$ and extend horizontally to $(87\, \text{s}, 8.2\, \text{m/s})$.