3 years ago

A train travels 83 kilometers in 2 hours, and then 79 kilometers in 2 hours. What is its average speed?

1 answer:

7 0

If you could please give me a already given speed I could estimate it. since there is no speed shown you wouldn't be able to estimate the speed of the moving train.

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2 years ago

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3 years ago

Read 2 more answers

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lbvjy [14]

Answer:

Speed of the duck and bullet just after hit will be 2.4752 m/sec

Explanation:

We have given mass of the duck $m_1=1kg$

Velocity of the duck $v_1=1.5m/sec$

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Velocity of the bullet $v_2=100m/sec$

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Initial momentum = final momentum

So $m_1v_1+m_2v_2=(m_1+m_2)v$

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3 years ago