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Ahat [919]
3 years ago
13

a pulley is used to lift a 2000 N safe over frosty's head. the safe is lifted 6m in 4s by Rudolph. how much power did Rudolph us

e?
Physics
1 answer:
garri49 [273]3 years ago
8 0

Answer:

3000W

Explanation:

Given parameter:

Weight of safe  = 2000N

Height of lift = 6m

Time = 4s

Unknown:

Power used by Rudolph = ?

Solution:

Power is the rate at which work is being done. It is expressed as:

 Power  = \frac{Work done }{Time taken}  

   Work done  = Weight x height = 2000 x 6  = 12000J

Power  = \frac{12000}{4}   = 3000W

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3 years ago
4. How much time does it take for a student running at a speed of 5 m/s to cover a distance of 2,000 m?
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Those who found this helpful please give me a Thanks to support me. So, I can explain other questions more clearly. If you don't want to mark me Brainliest don't mark. But, please give me a Thanks.

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