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DochEvi [55]
4 years ago
9

A car slams on its brakes, coming to a complete stop in 4.0 seconds. The car was traveling south at 60.0 mph. Calculate the acce

leration.
Physics
1 answer:
denis23 [38]4 years ago
5 0
Alright let's start this off with our basic equation!

Accerlation (a) = ?

Initial velocity (V1)= 60 mph = 88 ft/s (because we HAVE to convert mph to ft/s to match time)

Final velocity (V2) = 0 ft/s because the car stops

Time (t) = 4 seconds

a = \frac{Final velocity - Initial Velocity}{time}
a = \frac{0 - 88}{4}
a = \frac{-88}{4}
a = -22 

Therefore, your acceleration is -22 ft/s² !! Hope this helped and was one of the branliest answers :') 


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4 years ago
If a ball is thrown vertically upward with a velocity of 160 ft/s, then its height after t seconds is s = 160t − 16t^2.
White raven [17]

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400ft.    32ft/s       -32ft/s

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In reality the gravitational acceleration is 9.81 so the quadratic coefficient of the function should be 9.81/2

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6 0
3 years ago
A wire loop is suspended from a string that is attached to point P in the drawing. When released, the loop swings downward, from
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Complete Question

The complete question iws shown on the first uploaded image  

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a

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Note (The x is showing cross product )

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