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Mike is cutting the grass using a human-powered lawn mower. He pushes the mower with a force of 45 n directed at an angle of 41° below the horizontal direction. Calculate the work that mike does on the mower each time he pushes it 9.1 m across the yard.

Respuesta :

Answer:

work done will be equal to 305.05 J

Explanation:

We have given force exerted F = 45 N

Angle with the horizontal [tex]\Theta =41^{\circ}[/tex]

Distance moved due to exerted force d = 9.1 m

Work done is equal to [tex]W=Fcos\Theta \times d[/tex] , here F is force [tex]\Theta[/tex] is angle with horizontal and d is distance moved due to force

So work done [tex]W=45\times cos41^{\circ}\times 9.1=309.05J[/tex]

So work done will be equal to 305.05 J

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