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Author Question: It requires 49 J of work to stretch an ideal very light spring from a length of 1.4 m to a length of ... (Read 55 times)

Hungry!

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on: Jul 29, 2018
It requires 49 J of work to stretch an ideal very light spring from a length of 1.4 m to a length of 2.9 m. What is the value of the spring constant of this spring?
 
  A) 15 N/m
  B) 44 N/m
  C) 29 N/m
  D) 22 N/m

Question 2

A 1000.0 kg car is moving at If a truck has 18 times the kinetic energy of the car, how fast is the truck moving?
 
  A) 45 km/h
  B) 63 km/h
  C) 54 km/h
  D) 36 km/h


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atrochim

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

Answer: A

Answer to Question 2

Answer: A


Hungry!

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Reply 2 on: Jul 29, 2018
Excellent

shewald78

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Reply 3 on: Yesterday
Wow, this really help

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