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Leokris [45]
3 years ago
9

A car travelling at 15 m/s comes to rest in a distance of 14 m when the brakes are applied.

Physics
1 answer:
stira [4]3 years ago
3 0

Answer:

-8.04 m/s2

Explanation:

To find the answer to this, you have to use the 4th kinematic equation:

v^{2} = v^{2}_{0}  + 2ax

You plug into the equation to get:

0 = 15^{2} + 2a(14)

solve for a to get

-8.04 m/s2

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Answer:

<h2>98 J</h2>

Explanation:

The potential energy of a body can be found by using the formula

PE = mgh

where

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h is the height

g is the acceleration due to gravity which is 9.8 m/s²

From the question we have

PE = 5 × 9.8 × 2

We have the final answer as

<h3>98 J</h3>

Hope this helps you

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3 years ago
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Answer:

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3 years ago
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Answer:

D

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7 0
4 years ago
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Answer:

As the temperature rises the solubility of all gases in water also will decrease.  

Explanation:

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The scape of the gas molecules from solution occurs by the breaks of the intermolecular bonds as a consequence of the increase of the kinetic energy which causes an increase in the motion of the gas molecules in solution.                                                    

That is why as the temperature rises the solubility of all gases in water also will decrease.      

I hope it helps you!                        

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