Physics, asked by yunhology4u, 5 months ago

please answer (physics)

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Answers

Answered by sangamscr011

1

Answer:

speed of truck will be 4m/s

Explanation:

by applying law of conservation of momentum

m1 - mass of car

u1 - initial velocity of car

m2 = mass of trauck

u2 = initial velocity of truck

so

m1u1 +m2u2 = m1v1 + m2v2

200*20 + 2000* 2.5 = 200 * 5 + 2000 v2

4000 + 5000 =1000 + 2000v2

9000 - 1000 = 2000v2

8000 = 2000v2

v2 =4m/s

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