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the goat weighs 900 N and is 1 meter from the fulcrum. The strongman pulls down on the lever 3 meters from the fulcrum. What is the smallest effort that the strongman can use to lift the goat.
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the goat weighs 900 N and is 1 meter from the fulcrum. The strongman pulls down on the lever 3 meters from the fulcrum. What is the smallest effort that the strongman can use to lift the goat.

User Shahil
by
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2 Answers

7 votes

Answer:

Just over 300 N

Step-by-step explanation:

Just over 300 N

Explanation: The goat is 1 meter from the fulcrum, and the strongman is 3 meters from the fulcrum. The mechanical advantage of the lever will be 3. The effort needed to lift the goat will be just over one-third the weight of the goat, in this case just over 300 newtons.

User Muhammad Gelbana
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5.1k points
1 vote

Answer: The smallest effort = 300N

Step-by-step explanation:

Using one of the condition for the attainment of equilibrium:

Clockwise moment = anticlockwise moments

900 × 1 = 3 × M

Where M = the weight of the strong man

3M = 900

M = 900/3 = 300N

Therefore, 300N is the smallest effort that the strongman can use to lift the goat

User MattyV
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4.5k points
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