Question

Physics 11 Question!





An airplane has 1500 m to accelerate to a speed of 62.0 m/s to take off. If it experiences 15000 N of friction calculate the thrust of the engines. Mass of airplane is 15000 Kg.

Answer 1

I do not understand what is it asking me to find. It says " Calculate the thrust of the engines", I assume it is talking about acceleration. What do you think?

Vf^2-Vi^2/ 2d=a
62^2/(2)(1500)=a
a= 1.28 m/s^2

Answer 2

What is it asking me to find?

Answer 3

Thrust in your case is the tension, where the friction opposes it

Answer 4

T is your thrust here

Answer 5

How is it possible? I do not have Fnet to calculate it.
Fnet - Ff= Ft

Answer 6

@Astrophysics

Answer 7

I got it! when we get value of a.
1.28 x 15000 kg = Fnet
Fnet - Ff = Ft

True?

Answer 8

So?

Answer 9

My work is correct?

Answer 10

Considering the thrust is the applied force, looks good!

Answer 11

Thank you :)

Answer 12

Np