Question

An object moves along a straight line for some time. It speed is 10 m/s for one
third of total time taken and 40 m/s for remaning two third of total time taken.
Find its average velocity for total time taken.

options
1. 30m/s
2. 20m/s
3. 25m/s
4. 15m/s​

Answer 1

Answer:

given,

t1=1/3

t2=2/3

According to the question

difference of time taken=1/3-2/3

=by cross multiplication=6-3/3

=3/3=1 s

Now average velocity=u+v/2

=40+10/2

=50/2

=25m/s

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