Itsfendi18
Answered

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In the video "Understanding Flight" which came first in providing thrust for airplanes
A. turbine engine
B. propeller
C. rockets

Sagot :

Answer:

This second engine fires for 3 s

Further explanation

Acceleration is rate of change of velocity.

a = acceleration (m / s²)v = final velocity (m / s)

u = initial velocity (m / s)

t = time taken (s)

d = distance (m)

Let us now tackle the problem!

Given:

thrust of first engine = F₁ = 6 N

elapsed time of first engine = t₁ = 2 s

thrust of second engine = F₂ = 4 N

Asked:

elapsed time of second engine = t₂ = 2 s

Solution:

We will use Newton's Law of Motion to solve this problem as follows:

Explanation:

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