MONGU COLLEGE

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During an experiment conducted on the effort E to lift a load W when using a simple the following values were recorded.

………………………………………………………………………………………………
|Effort E| 20 | 24.8|30 | 35 | 45 |
……………………………………………………………………………………………
|Load W |100 | 200 |300 | 400| 600|
|…………………………………………………………………………………………
If E and W are connected by the law of the form E= aw+b, determine.

(a).The value of a and b .
(b).the value of E when W = 280N.

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