pls tell these physics questions
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clear nahi dikh raha
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11(a) Solution:
In first 2 seconds, u=0m/s
. v=20m/s
. t=2s
. v²=u²+2as
Firstly,for finding acceleration
. a=v-u/t
Or, a=20-0/2
Or, a=10m/s²
Now,for distance(s)
. v²=u²+2as
Or, (20)²=(0)²+2•10•s
Or, 400=20s
Or, s=400/20
Therefore, s=20 m Ans
In first 2 seconds, u=0m/s
. v=20m/s
. t=2s
. v²=u²+2as
Firstly,for finding acceleration
. a=v-u/t
Or, a=20-0/2
Or, a=10m/s²
Now,for distance(s)
. v²=u²+2as
Or, (20)²=(0)²+2•10•s
Or, 400=20s
Or, s=400/20
Therefore, s=20 m Ans
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