Question

The evil monkey is using a 2000 W motor to lift a 200 kg piano up 5 m. About how long will it take him? *

Answer 1

Answer: • read the question carefully, choose the best answer and,

• on multiple choice questions, mark the Scantron sheet (match the question number) or

• fill in the blank(s) or

• follow the instructions for that problem.

• Don’t forget the units in your answers! Show your work for partial credit.

1) P = Wt    t =      

2) mgh  = mv22    v  =      Simplify your answer.

Explanation: Please mark me the brainleist

Answer 2

Answer:

a = | -10m/s^2 | (minus because it is pulled against gravity)(absolute value as it is a dot product)

m = 200 kg

s = 5m

t= ?

P= FS/t

2000 = (200*10)(5)/t

2000/2000 = 5/t

1=5/t

t= 5 seconds