Physics Word Problem

label Physics
account_circle Unassigned
schedule 1 Day
account_balance_wallet $5

Two blocks of masses 7 kg and 25 kg are
placed on a horizontal, frictionless surface. A
light spring is attached to one of them, and
the blocks are pushed together with the spring
between them. A cord holding them together
is burned, after which the block of mass 25kg
moves to the right with a speed of 27 m/s.
What is the velocity of the other mass in
Answer in units of m/s.

Jun 30th, 2015

Thank you for the opportunity to help you with your question!

the momentum and energy is conserved during the motion

M1V1+m2V2 =0 

7*V1+25*27 = 0 

V1 = -25*27/7 =  -96.4 m/s 

negative means the velocity is to the left. 

Please let me know if you need any clarification. I'm always happy to answer your questions.
Jun 30th, 2015

Did you know? You can earn $20 for every friend you invite to Studypool!
Click here to
Refer a Friend
Jun 30th, 2015
Jun 30th, 2015
Oct 20th, 2017
Mark as Final Answer
Unmark as Final Answer
Final Answer

Secure Information

Content will be erased after question is completed.

Final Answer