Answer:

Explanation:
Given


Required
Determine the acceleration
This will be calculated using force formula:

Substitute values for Force and Mass

Divide both sides by 62kg


<em>Hence, the wave boarder accelerates at </em>
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Some are rumours or false stories
The results of new evidences can bring about a change in scientific knowledge
Explanation:
Scientific knowledge is attained when there is experimental and observational confirmation. Scientific knowledge may also be subjected to change due to changes in the technology and the new tactics which are incorporated while observing the experiments.
It is also subjected to change when it involves totally a novel way of thinking and framing questions. When new evidences are observed regarding an experiment, the result of the experiment may change as a whole.