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6.1 Work

Last updated almost 4 years ago

8 Nsɛmmisa

6

6

4

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3.

How much work was done in this GIF?

4

6

8

4

4

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1.

Describe how you know that work was done in this GIF.

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2.

What is the 'theta angle' AND how do you know?

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4.

Mmuae Afoforo a Wobɛpaw:

W

v^2

cos(theta)

tan(theta)

F

a

r

m

D

sin(theta)

d

v

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5.

Create an example, different from the ones said in class or the examples given to you, where there is ZERO Work being done. Convince me your example is correct.

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6.

Refine your two-part conclusion from the lab in which you described the effect of the inclined angle upon the...
1. the amount of force required to pull the cart up the hill at a constant speed and
2. the amount of work done when pulling the cart up the hill at a constant speed.

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7.

A force of 30 N acts on the block at the angle shown. The block moves a horizontal distance of 37 cm. How much work is done by the applied force? (Show your work for feedback!)

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8.

Calculate the work done by a 22-N force (directed at a 40° angle to the vertical) to move a 5-kilogram box a horizontal distance of 500 cm across a rough floor at a constant speed of 0.7 m/s. (LOST? Confused?: Go back to the slideshow, and read the very last slide and the speaker notes at the bottom.) (Make sure you show your work for feedback!)