Physics

Problem

A power–time graph for a cyclist encloses an area of

1.2\times10^{4}\,\text{J}

between

t=0

and

t=40\,\text{s}

. What does this area represent? a) Average power developed over

40\,\text{s}

b) Instantaneous power at

t=40\,\text{s}

c) Total work done by the cyclist in

40\,\text{s}

d) Total mechanical energy of the cyclist at

t=40\,\text{s}