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Nina [5.8K]
3 years ago
7

A truck at rest at a stoplight accelerates uniformly with acceleration a = 3.8 meters/second2 for 8.5 seconds after the light tu

rns green. What is the speed of the truck in meters/second after that time interval?
Physics
1 answer:
shusha [124]3 years ago
5 0

Answer:

32.3 m/s

Explanation:

final speed= initial speed + acceleration x time interval

<h3>v = vi + a x t</h3>

where your initial speed is 0 because the truck is resting

a=3.8 m/s2 and t=8.5 s

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During a hard drive crash the read/write head scrapes against the disk with a coefficient of kinetic friction of µk and normal f
Alex_Xolod [135]

Answer:

 α = \frac{2 \mu \  N}{m \ r}

Explanation:

For this exercise we use Newton's equation for rotational motion

           ∑ τ = I α

the troque is

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the moment of inertia of a cylinder is

           I = ½ m r²

we substitute

         fr r = (½ m r²) α

the expression friction is

         fr = μ N

we substitute

         μ N r = ½ m r² α

       

         α = \frac{2 \mu \  N}{m \ r}

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3 years ago
I think I know the answer but I am not sure
Romashka [77]
The answer is a

Hope this helps!
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4 years ago
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Examples of non viscous liquid​
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You are to assume the role of each of the following members of a community;
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6 0
4 years ago
A cupcake recipe designed to produce 28 cupcakes calls for 360 grams of flour Determine the quantity of flour that would be
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32 cupcakes calls ???

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