The coordinates of a particle moving in x-y plane at any instant of ti – McqOptions

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1.	The coordinates of a particle moving in x-y plane at any instant of time t are \[\text{x = 4}{{\text{t}}^{\text{2}}}\text{; y = 3}{{\text{t}}^{\text{2}}}\]. The speed of the particle at that instant is
A.	10 t
B.	5 t
C.	3 t
D.	2 t
Answer» B. 5 t

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