subject
Mathematics, 03.12.2021 14:30 quokkamokka97

The power, P
(watts)
, of a car engine is proportional to the square of its speed,
s

(
m
/
s
)
.
When
s
=
45
,
P
=
2180
.
Work out the power (to 1 DP) when the speed is
35

m
/
s

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Answers: 3
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The power, P
(watts)
, of a car engine is proportional to the square of its speed,
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