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Mathematics
Mathematics
Problem
A particle moves so that its displacement is
s
(
t
)
=
e
k
t
2
s(t)=e^{k t^{2}}
s
(
t
)
=
e
k
t
2
metres. If its acceleration at
t
=
0
t=0
t
=
0
is
10
m s
−
2
10\,\text{m s}^{-2}
10
m s
−
2
, the value of
k
k
k
is a)
10
10
10
b)
5
5
5
c)
2.5
2.5
2.5
d)
20
20
20
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