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3 years ago

A 1500 kg car traveling 5.0 m/s collides head on with a 3000 kg truck traveling

Physics

1 answer:

Setler [38]3 years ago

6 0

m1=1500kg
m_2=3000kg
v_1=5m/s
v_2=7m/s

Using law of conservation of momentum

$\\ \sf\Rrightarrow m_1v_1-m_2v_2=(m1+m2)v_3$

$\\ \sf\Rrightarrow 1500(5)-3000(7)=(1500+3000)v_3$

$\\ \sf\Rrightarrow 7500-21000=4500v_3$

$\\ \sf\Rrightarrow -13500=4500v_3$

$\\ \sf\Rrightarrow v_3=-3m/s$

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it would take 6 sec

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Explanation:

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Hence if power is constantly supplied energy constantly increase

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= $4* 1.5sec = 6sec$

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Looking at it we see that final velocity is directly proportional with time

hence it would take twice the time to reach twice the final velocity

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How does eating food produced locally benefit the environment?

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