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3 years ago

15

Would it be better to collide head-on with an identical car traveling at the same speed or collide with a stationary brick wall?

1 answer:

attashe74 [19]3 years ago

6 0

It makes no difference. The momentum of either car goes to zero in both cases.

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How does paving parking lots and roads with concrete or asphalt affect surface water and groundwater?

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3 years ago

Gennadij [26K]

Answer:

3.675 m

Explanation:

$a_{x} =0$ $v_{xo}=100$ $a_{y} =-g$ $v_{yo}=0$

X-direction | Y-direction

$R=x_{o}+ v_{xo} t$ | $y=y_{o}+v_{yo}t+\frac{1}{2}a_{y}t^2$

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$\frac{75}{100} =t$ | $y=3.675 m$

$0.75s=t$

Hope it helps

3 0

3 years ago