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8090 [49]
3 years ago
15

An aeroplane accelerates from rest to 65 m/s for take-off. It travels for

Physics
1 answer:
Virty [35]3 years ago
5 0

Answer:

1.76m/s²

Explanation:

Given parameters:

Initial velocity  = 0m/s

Final velocity  = 65m/s

Distance traveled  = 1200m

Unknown:

Acceleration  = ?

Solution:

This is linear velocity and we apply the appropriate motion equation to solve this problem.

      V²  = U² + 2as

S is the distance

u is the initial velocity

V is the final velocity

a is the acceleration

Now, insert the parameters and solve;

             65²  =  0² + 2 x a x 1200

             4225 = 2400a

                  a  = 1.76m/s²

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<span>a = 25-13/6  = 12/6 = 2 m/s^2
Av speed: 25+13/2 = 38/2  = 19 m/sec
Dist = speed * time
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9. Ripening is a _______________ and spoiling is a ______________.
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A sample of ascorbic acid (vitamin C) is synthesized in the laboratory. It contains 1.50 g of carbon and 2.00 g of oxygen. Anoth
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8.467 gm

Explanation:

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As per this law, all compounds irrespective of their origin and source have the same composition and properties  in their purest form

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3 years ago
What is the average acceleration given by this graph:
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A 25.0-kg child is standing at the edge of a horizontal merry-go-round with a radius of 2.40 m and a moment of inertia of 356 kg
motikmotik

Answer:

\omega_{f}=1.634\ rad/s  

Explanation:

given,  

diameter of merry - go - round = 2.40 m  

moment of inertia = I = 356 kg∙m²

speed of the merry- go-round = 1.80 rad/s

mass of child = 25 kg  

initial angular momentum of the system  

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final angular momentum of the system  

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L_f = (356 + 25\times 1.2^2)\omega_{f}  

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640.8= (392)\omega_{f}  

\omega_{f}=1.634\ rad/s  

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