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Wayne exerts a force of 90.2 N to pull a 409 N sled along a snowy path using a rope that makes a 34◦ angle with the ground. The sled moves 15.5 m in 4.8 s. What is Wayne’s power? Answer in units of W
asked Jan 26, 2016 in PHYSICS by anonymous

1 Answer

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Step 1:

The force exerted to pull a sled image is image.

The rope makes an angle with ground is image.

The sled moves distance is image in image.

The component of force that is in the direction of the sleds movement is image.

image.

The work done is image.

image

Substitute image, image and image.

image

image

image.

Step 2:

Power image.

Substitute image and image.

image

image.

Wayne's power is image.

Solution:

Wayne's power is image.

answered Jan 26, 2016 by Sammi Mentor
edited Jan 26, 2016 by Sammi

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