A uniform beam of weight W is attached to a wall by
a pivot at one end and is held horizontal by a cable
attached to the other end of the beam and to the
wall, as shown above. T is the tension in the cable,
which makes an angle with the beam. Which of
the following is equal to T?
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Ответ:
Swimming.
Explanation:
An increase of flexibility for swimming helps elongate the swimmer to propel faster and glide through the water easier. If the swimmer is inflexible, they won't be able to stretch as far as they should. But, if they were flexible, it'd be easier and much simpler.