Question

A plane starting from rest accelerates at 3 m/s2 for 25 s. Calculate the
increase in velocity after:
1s​

Answer 1

Answer:

78m/s

Explanation:

u=0 ,a=3m/sec^2 ,t=25sec

v=u+at

=0+25×3

=75m/s

after 1sec

v=u+at+75

=0+3×1+75

=78m/s

Answer 2

Answer:

75m

Explanation:

What do we know?
u=0, a=3m/s², t=25 s
So we can use the formula v=u+at
Hence,
v=0+3*25
v=75 (Times 1 will give us the same answer. We will times it with any given second we get).