solve it fastt.....
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Answered by
65
Explanation:
On throwing upward......
u= 20m/sec. a = -10m/sec^2. v=0m/sec
t=??
By v=u+at
0=20-10(t)
-20 = -10t
t=2sec.
We know that time taken in upward and downward motion of same particle is same...
So, time taken for downward motion = 2sec.
Total time = 2+2
= 4sec.... (opt.a)
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Answered by
1
Answer:
option b
hope it helps!!
@ItzSugaryHeaven3
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