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Author Question: A hill is 150 m long and makes an angle of 12 with the horizontal. As a 60-kg jogger runs up the ... (Read 93 times)

pepyto

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on: Jul 28, 2018
A hill is 150 m long and makes an angle of 12 with the horizontal. As a 60-kg jogger runs up the hill, how much work does gravity do on the jogger?
 a. 8.82E+4 J
  b. 1.83E+4 J
  c. 1.83E+4 J
  d. 8.63E+4 J
  e. zero

Question 2

Samantha pushes a 60-N crate up a ramp 30 m in length and inclined at 10 with the horizontal. What potential energy change does the crate experience?
 a. 1.8E+3 J
  b. 1.8E+3 J
  c. 1.2E+1 J
  d. 3.1E+2 J
  e. 1.0E+4 J


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zacnyjessica

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Reply #1 on: Jul 28, 2018
Answer to Question 1

c

Answer to Question 2

d


pepyto

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Reply 2 on: Jul 28, 2018
Thanks for the timely response, appreciate it

nguyenhoanhat

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Reply 3 on: Yesterday
:D TYSM

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