Introduction to Machines Answers

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The mechanical advantage of the baseball bat is .

Answer:

0.2

What output force is generated when an input force of 630 N is applied to a machine with a mechanical advantage of 3?

21 N

189 N

210 N

1,890 N

The efficiency of the rope system is %.

Answer:

How does the shovel make work easier for the man digging the hole? Check all that apply.

The shovel changes the direction of the force the man applies.

The man can apply less force.

The man has to apply more force.

The force applied by the end of the shovel decreases.

The force applied by the end of the shovel increases.

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