Chris is enjoying a swim but needs to get back for lunch. If she can swim at 3 m/s and run at 7m/sec, how far along the bank should she land in order to get back as quickly as possible?
A ladder 3m long rests against a wall with one end a short distance from its base. Between the wall and the base of a ladder is a garden storage box 1m tall and 1m high. What is the maximum distance up the wall which the ladder can reach?
Work in groups to try to create the best approximations to these physical quantities.
Was it possible that this dangerous driving penalty was issued in error?
How do these modelling assumption affect the solutions?
10 intriguing starters related to the mechanics of sport.
See how the motion of the simple pendulum is not-so-simple after all.
Weekly Problem 18 - 2014
The 80 spokes of the giant wheel The London Eye are made from 4 miles of cable. What is the approximate circumference of the wheel?
When Andrew arrives at the end of the walkway, how far is he ahead of Bill?