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Number of tiles being added | Additional overhang (cm) | Total overhang (cm) | |
$1$ | $10$ | $10$ | $10/1$ |
$2$ | $5$ | $10 +5 = 15$ | $10/1+10/2$ |
$3$ | $3\frac{1}{3}$ | $10+5+3\frac{1}{3}$ | $10/1+10/2+10/3$ |
Bricks are 20cm long and 10cm high. How high could an arch be built without mortar on a flat horizontal surface, to overhang by 1 metre? How big an overhang is it possible to make like this?
Explain why, when moving heavy objects on rollers, the object moves twice as fast as the rollers. Try a similar experiment yourself.
Given the graph of a supply network and the maximum capacity for flow in each section find the maximum flow across the network.