3 years ago

Select all that are correct.

Physics

2 answers:

lesya [120]3 years ago

8 0

Answer:

f and g are correct

Explanation:

iogann1982 [59]3 years ago

4 0

Answer:

3) F

4) A

5) D

Explanation:

huhu basta yan lang alamko!

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A railroad car of mass 3.45 ✕ 104 kg moving at 2.60 m/s collides and couples with two coupled railroad cars, each of the same ma

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Answer:

a) 1.67 m/s

b) 23kJ

Explanation:

We need to apply the linear momentum conservation formula, that states:

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in this case:

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$K_i=\frac{1}{2}*3.45*10^4kg*(2.60m/s)^2+2(\frac{1}{2}*3.45*10^4kg*(1.20m/s)^2\\K_i=167kJ$

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The energy lost is given by:

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