57 417
Assignments Done
Successfully Done
In February 2018
Your physics homework can be a real challenge, and the due date can be really close — feel free to use our assistance and get the desired result.
Be sure that math assignments completed by our experts will be error-free and done according to your instructions specified in the submitted order form.
Our experts will gladly share their knowledge and help you with programming homework. Keep up with the world’s newest programming trends.

Answer on Mechanics | Relativity Question for mia

Question #3846
A thread holds two carts together on a frictionless surface as in the figure below. A
compressed spring acts on the carts. After the thread is burned, the 1.5 kg cart moves with
a velocity of 27 cm/s to the left. What is the velocity of the 4.5 kg cart?
Expert's answer
Let m1 be the mass of the first cart (m1 = 1.5 kg), m2 - the mass of the second cart (m2 = 4.5 kg).
V1 - velocity of the first cart, V2 - velocity of the second cart.
According to the law of conservation of linear momentum:

0 = m1V1 - m2V2
V2 = V1*m1/m2
V2 = 27*1.5/4.5 = 9 cm/s

So, the velocity of the 4.5 kg cart is 9 cm/s.

Need a fast expert's response?

Submit order

and get a quick answer at the best price

for any assignment or question with DETAILED EXPLANATIONS!


No comments. Be first!

Leave a comment

Ask Your question