Question

An electron has a constant acceleration of 3.2m/s². At certain instant it's velocity is 9.6m/s . what is it's velocity 2.5 second earlier
answer is 1.16 m/s . ​

Answer 1

Answer:

Given,

a=3.2m/s

2

v

f

=9.6m/s

t=2.5s

Using, v

f

=v

0

+at

⇒v

0

=(9.6−3.2×2.5)m/s

∴v

0

=1.6m/s