Question

Assuming that Althea elevated her 90-kg body up to 6 meters stairwell in 5 seconds. If this were the case, we could estimate Althea's power rating. It can be assumed that Althea must exert 850-Newton downward force upon the stairs to elevate his body. By doing so, the stairs would push upward on Althea's body with just enough force to lift his body up the stairs.

*with solution please​

Answer 1

Answer:

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