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Author Question: A spring is characterized by a spring constant of 60. N/m. How much potential energy does it store, ... (Read 104 times)

lunatika

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on: Jul 27, 2018
A spring is characterized by a spring constant of 60. N/m. How much potential energy does it store, when stretched by 1.0 cm?
 
  A) 600. J
  B) 6.0 J
  C) 60. J
  D) 0.3 J
  E) 0.003 J

Question 2

When a car, moving at velocity v, collides head on with a light volley ball, initially at rest, the ball bounces off with velocity
 
  A) -v.
  B) -4v.
  C) -1.5v.
  D) -2v.
  E) -v/2.


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Joy Chen

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Reply #1 on: Jul 27, 2018
Answer to Question 1

E

Answer to Question 2

D


lunatika

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Reply 2 on: Jul 27, 2018
Wow, this really help

nguyenhoanhat

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Reply 3 on: Yesterday
:D TYSM

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