What is the efficiency of the machine in Figure 7.2 if the weight of the box is 200 N and required 98 N of effort Force?
1 answer:
this question is tricky but the answer is C
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Centripetal force = (mass) x (speed)² / (radius)
= (20 kg) x (20 m/s)² / (20 m)
= (20 x 20 / 20) (kg-meter/sec²)
= 20 newtons
Answer:
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Explanation:
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Get a direct answer of what???
Answer:
Explanation:
Given
,
,
,
The tension of the spring is
The force in the spring is equal to centripetal force so
But Fc is also
Fc=KxΔr
Replacing
total distance is
Answer:
Explanation:
If i'm not wrong and late it might be F
