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konstantin123 [22]
3 years ago
7

Drop interesting and usefuk facts down here plesse and i'll give the most interesting one brainliest

Physics
1 answer:
Alina [70]3 years ago
4 0
1)The average person spends 6 months of their lifetime waiting on a red light to turn green.
2)16. Men are 6 times more likely to be struck by lightning than women.
3)Coca-Cola would be green if coloring wasn’t added to it
4)Chewing gum while you cut an onion will help keep you from crying.
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A 2800 kg truck moving at 12 m/s to the right hits a stopped 1100 kg car. What is the combined velocity the moment they stick to
leva [86]

Answer:

The combined velocity is 8.61 m/s.

Explanation:

Given that,

The mass of a truck, m = 2800 kg

Initial speed of truck, u = 12 m/s

The mass of a car, m' = 1100 kg

Initial speed of the car, u' = 0

We need to find the combined velocity the moment they stick together. Let it is V. Using the conservation of momentum.

m_1v_1+m_2v_2=(m_1+m_2)V\\\\V=\dfrac{m_1v_1+m_2v_2}{(m_1+m_2)}\\\\V=\dfrac{2800\times 12+0}{2800+1100}\\\\V=8.61\ m/s

So, the combined velocity is 8.61 m/s.

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