A particle noves for aos with speed omls and
then speed 8m/s for another 20s and finally
moves with speed 10m/s for next dos. what
is the average speed of the particle?
a) 6ml (6) 8m/s clom/ d)o
Answers
Answered by
1
Explanation:
Correct option is
B
4 m/s
Total distance covered by particle d=v
1
t
1
+v
2
t
2
+v
3
t
3
∵t
1
=t
2
=t
3
=20sec
d=20(3+4+5)= 240 m
Total time, T= 3×20 =60sec.
Avg velocity v=
T
d
=
60
240
=4 m/s
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