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Mathematics
Mathematics
Problem
A particle is moving with speed
v
=
b
x
v = b\sqrt{x}
v
=
b
x
along the positive
x
x
x
-axis. Calculate the speed of the particle at time
t
=
τ
t = \tau
t
=
τ
(assume that the particle is at the origin at
t
=
0
t = 0
t
=
0
). a.
b
2
τ
4
\frac{b^2\tau}{4}
4
b
2
τ
b.
b
2
τ
2
\frac{b^2\tau}{2}
2
b
2
τ
c.
b
2
τ
b^2\tau
b
2
τ
d.
b
2
τ
2
\frac{b^2\tau}{\sqrt{2}}
2
b
2
τ
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