Question

A particle moving in a straight line covers half the
distance with speed of 12 m/s. The other half of
the distance is covered in two equal time intervals
with speed of 4.5 m/s and 7.5 m/s respectively.
The average speed of the particle during this
motion is :​

Answer 1

Answer:

Answer is 8

Explanation:

Total Distance is (D) =12+4.5+7.5=24

Time taken (t) =3secs

We know that,

Average speed (v) =D/t

=24/3

=8 m/s