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jeyben [28]
3 years ago
15

A car from rest moves a distance s(m) in t second, where s=3t³+t²/4 determine(i)the initial acceleration of the car (ii)the acce

leration of the car at the end of 3rd second​
Physics
1 answer:
Sunny_sXe [5.5K]3 years ago
8 0

Answer:

0.5 , 54.5

Explanation:

for acceleration we should derivate the equation 2 times

x=3t³+t²/4

v=9t²+t/2

a=18t+1/2

a(0)=0.5

a(3)=54.5

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cup of hot chocolate has a spoon in it. How does the heat move from the hot chocolate to the metal spoon handle?
serg [7]

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It is the transfer of heat energy from one object to another when they are in contact with eachother.

Hope this answers your question.

5 0
3 years ago
A truck on the freeway originally moving at 6.6 meters/second accelerates uniformly with acceleration a = 2.8 meters/second2 for
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Answer:

139.514 metres

Explanation:

Initial velocity of the truck = 6.6 m/s

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Therefore we use the formula,

s = ut + 1/2 at^2

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3 years ago
Which of the following phrases best describes a physical model?
Shtirlitz [24]

Answer:

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3 0
3 years ago
How does the mass of an object affect the outcome when the forces acting upon it are unbalanced? I need six sentences...
PilotLPTM [1.2K]
<h3><u>Mass of an object affect the outcome of unbalanced forces:</u></h3>

Newton’s second law of motion deals with the result of motion of an object when unbalanced forces are applied. The second law of motion establish the relationship between mass, acceleration and unbalanced forces of the object. The below points explains the relation between unbalanced forces acting on mass of the object. The acceleration of object would be higher when the unbalanced force is higher.  

The equation for the unbalanced force is,

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3 years ago
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