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gizmo_the_mogwai [7]
2 years ago
6

Which of the following can be correct units for acceleration?

Physics
1 answer:
SVETLANKA909090 [29]2 years ago
6 0

Answer:

B. Km/s/hr

Explanation:

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Suppose a car manufacturer tested its cars for front-en4 collisions by hauling them up on a crane and dropping then; from a cert
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Answer:

a

Generally from third equation of motion we have that

v^2 =  u^2 + 2a[s_i - s_f]

Here v is the final speed of the car

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s_i is the final position of the car which is zero meters (i.e the ground)

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b

H  =  9.86 \  m

Explanation:

Generally from third equation of motion we have that

v^2 =  u^2 + 2a[s_i - s_f]

Here v is the final speed of the car

u is the initial speed of the car which is zero

s_i is the initial position of the car which is certain height H

s_i is the final position of the car which is zero meters (i.e the ground)

a is the acceleration due to gravity which is g

So

v^2 = 0 + 2g[H - 0]

=> v  =  \sqrt{ 2 g H}

When v  = 50 \  km/h = \frac{50 *1000}{3600} = 13.9 \  m/s we have that

13.9  =  \sqrt{ 2 g H}

=> H  =  \frac{13.9^2}{2 *  9.8}

=> H  =  9.86 \  m

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Hanna tosses a ball straight up with enough speed to remain in the air for several seconds?
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If you want to know how energy will move between two objects, what do you
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I believe it is C. Their Temps.

Explanation:

Hope my answer has helped you!

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