Question

A bus moving along a straight line at 20 m/s undergoes an acceleration of 4 m/s.
Arter 2 seconds, its speed will be:
(b) 12 m/s (c) 16 m/s (d) 28 m/s.​

Answer 1

d 28 ok hsxbb fxv fx bgc g

Answer 2

ANSWER:-

Given:

A bus moving along a straight line at 20m/s undergoes of 4m/s.

After 2 second,

Solution:

Here,

⚫Initial speed,(u)= 20m/s.

⚫Final speed,(v) =?

⚫Acceleration,(a)= 4m/s²

⚫Time, (t)= 2sec.

According to the question:

⚫Using first equation of motion:

=) v= u + at

=) v= 20 + 4(2)

=) v= 20 + 8

=) v= 28m/sec.

Thus,

After 2 second, the speed will be 28m/s.

Option (d)✓

Hope it helps ☺️