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S_A_V [24]
3 years ago
11

The aircraft has a mass of 6x 104kg. Two identical jet engines provide a thrusting

Physics
1 answer:
astraxan [27]3 years ago
7 0

Explanation:

I assume the acceleration calculated in part (b) is the 3.33 m/s² from your other question.

Use Newton's second law to find the total force:

F = ma

F = (60,000 kg) (3.33 m/s²)

F = 200,000 N

Since there are 2 engines, the thrust from each is half of this:

F = 100,000 N

In reality, there are forces other than thrust.  There are also drag forces (rolling friction and air resistance).

From Newton's second law, if we increase the mass and keep the force the same, the acceleration decreases.  So it would take longer to reach the take-off speed.

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When a horse pulls on a cart, t<span>he horse exerts a force only to the cart. But that force applies only to the cart, not to the horse.
 
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8 0
3 years ago
Check the dimensional consistencies of s =vot+1/2at2​
Leni [432]

Answer:

s is distance so it's dimensions become L.

Nd other side we have ut+1\2at^2.

as 1\2 is a constant it will have dimensions and apply the dimensions to other quantities.

on solving u will get L there also i,e ur LHS = RHS.

thus the equation is dimensionally consistent.

Explanation:

3 0
3 years ago
1. A rocket is fired vertically from the launch pad with a
zavuch27 [327]

Answer:

Max height= 36000 meters

Total Time = 120 seconds

Explanation:

0 = U - at

U = at

U= 20*60

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MAX altitude would be

(U²Sin²tita)/2g

Max height= 1200² *( SIN90)²/(2*20)

Time of FLIGHT

2 * 1200/20

2400/20

120 sec onds

7 0
3 years ago
So i need help with waves what is a transverse wave
zaharov [31]

Answer:

A wave in which the medium vibrates at right angles to the direction of the propagation is called transverse wave.

3 0
3 years ago
What’s the meaning of physics??
lukranit [14]

Answer:the branch of science concerned with the nature and properties of matter and energy. The subject matter of physics, distinguished from that of chemistry and biology, includes mechanics, heat, light and other radiation, sound, electricity, magnetism, and the structure of atoms.

Explanation:

7 0
2 years ago
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