3. A body travels 200 cm in the first 2 s and
220 cm in the next 5 s. Calculate the velocity
at the end of the seventh second from the
start.
(Ans. 2.22 m/s)
Answers
Answered by
0
Answer:
Answered: A body travels 200 cm in the first 2 seconds and 220 cm in the next four seconds. What will be its velocity at the end of the 7th second from the start? U+a=100 solving a=-15 m/s2 then u can solve for u =115 m/s. V=u+at=115+-15*7=10 cm/s.
Answered by
1
Answer:
60 m/s
Explanation:
total distance/displacment (s)= 200+220 cms= 420
cms
total time(t)= 2+5 s= 7s
therefore, velocity(v)= s/t
=420/7
=60 cms / s
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