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Author Question: A car starts from rest and after 6.0 seconds it has a kinetic energy of 60,000 J. How much ... (Read 12 times)

jjjetplane

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on: Jul 29, 2018
A car starts from rest and after 6.0 seconds it has a kinetic energy of 60,000 J. How much horsepower is needed for the car to acquire this kinetic energy?
 
  A) 6.0 hp
  B) 60 hp
  C) 0 hp
  D) 1.3 hp
  E) 13 hp

Question 2

What is the power needed to change the speed of a 1600-kg sport utility vehicle from 15.0 m/s to 40.0 m/s in 4.00 seconds?
 
  A) 100 kW
  B) 10.0 kW
  C) 140 kW
  D) 14.0 kW
  E) 275 kW


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Athena23

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Reply #1 on: Jul 29, 2018
Answer to Question 1

E

Answer to Question 2

E


jjjetplane

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Reply 2 on: Jul 29, 2018
Gracias!

brbarasa

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Reply 3 on: Yesterday
:D TYSM

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