3 years ago

A porsche 911 can go from 0 to 60 mph in 3.4 seconds whats ur acceleration?

Physics

2 answers:

taurus [48]3 years ago

5 0

My cars acceleration is 2.9 seconds on a track, i havent tested it on a highway yet

viva [34]3 years ago

3 0

60mph= 26.8224 m/s
accelerationn= final velocity-initial velocity/time

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A car starts from 0 m along a road and accelerates at 0.5 m/s^2 to the right. A second car starts from 1000 m along the road and

Brrunno [24]

Answer:

e) 31.6 seconds

Explanation:

t = Time taken

u = Initial velocity

v = Final velocity

s = Displacement

a = Acceleration

Equation of motion

$s=ut+\frac{1}{2}at^2\\\Rightarrow s_1=0\times t+\frac{1}{2}\times 0.5\times t^2\\\Rightarrow s_1=\frac{1}{2}0.5t^2\ m$

$s=ut+\frac{1}{2}at^2\\\Rightarrow s_2=0\times t+\frac{1}{2}\times 0.5\times t^2\\\Rightarrow s_2=\frac{1}{2}1.5t^2\ m$

$s_1+s_2=1000$

$\\\Rightarrow 1000=\frac{1}{2}0.5t^2+\frac{1}{2}1.5t^2\\\Rightarrow 1000=\frac{0.5t^2+1.5t^2}{2}\\\Rightarrow 1000=\frac{2t^2}{2}\\\Rightarrow 1000=t^2\\\Rightarrow t=\sqrt{1000}\\\Rightarrow t=31.6\ s$

Time taken by the cars to meet 31.6 seconds.

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4 years ago

A book is on the table. If the weight of the book is 25 newtons, what is the magnitude and direction of the normal force?

Andrej [43]

I'm not sure about the magnitude, but the direction of the normal force is upward.

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The solution for this problem is:
Let u denote speed.

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agasfer [191]

Answer:

second one is correct that is right

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4 years ago