Question

an aircraft on its takeoff run has a steadyacceleration of 3 m/s2.how much velocity does it gain in 10 sec?

Answer 1

u = 0
a = 3m/s²
t = 10s
v = u+at = 0 + 3*10 = 30 m/s
∴ It will gain 30m/s in 10s.

Answer 2

it's very simple.
we are given two quantities. ....
a = 3m/s^2
time = 10 secs.
as we know that plane starts from rest position...... so...
=> u = 0.
there's a formula....
v = u + at
put the values....
v = 0+ ( 3 )( 10 )
v = 0+ 30
v = 30 m/s
and here's the answer.