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sergejj [24]
3 years ago
10

Two construction cranes are each able to lift a maximum load of 20000 N to a height of 250 m. However, one crane can lift that l

oad in 1 6 the time it takes the other. How much more power does the faster crane have?
Physics
1 answer:
Neporo4naja [7]3 years ago
5 0

Answer:

Explanation:

Given

Load W=20000\ N

height to which load is raised h=250\ m

Another crane take \frac{1}{6} th time to lift the load

Energy required required to lift the Weight

E=W\times h

E=20000\times 250

E=5,000,000\ J

Suppose P_1 and P_2 is the Power required to lift the weight in t and \frac{t}{6} time

E=P_1\times t

E=P_2\times \frac{t}{6}

P_1\times t=P_2\times \frac{t}{6}

thus

P_2=6P_1

Second Crane requires 6 times  more power than the slow crane                                              

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