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Author Question: The ratio of kinetic energy of object A to the kinetic energy of object B is 2:1. Object A is moving ... (Read 94 times)

FButt

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on: Jul 29, 2018
The ratio of kinetic energy of object A to the kinetic energy of object B is 2:1. Object A is moving with a speed of 6.0 m/s and object B is moving with a speed of 2.0 m/s. If the mass of object A is 4.0 kg then what is the mass of object B?
 
  A) 2.0 kg
  B) 4.0 kg
  C) 8.0 kg
  D) 18 kg
  E) 16 kg

Question 2

The ratio of the kinetic energy of object A to the kinetic energy of the object B is 2:1. The mass of object A is 2.0 kg and the mass of object B is 4.0 kg. If object A has a speed of 4.0 m/s, what is the speed of object B?
 
  A) 8.0 m/s
  B) 6.0 m/s
  C) 4.0 m/s
  D) 1.4 m/s
  E) 2.0 m/s


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kaillie

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

D

Answer to Question 2

E


FButt

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Reply 2 on: Jul 29, 2018
Wow, this really help

xiazhe

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Reply 3 on: Yesterday
Great answer, keep it coming :)

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