Question : A particle has an initial velocity 3π’Μ+ 4π£Μand an acceleration of 0.4π’Μ+ 0.3π£Μ. Its speed after 10 s is
(A) 10 unit
(B) 7 unit
(C) 7β2unit
(D) 8.5 units
Answer : option (C)
Solution :
A particle has an initial velocity 3π’Μ+ 4π£Μand an acceleration of 0.4π’Μ+ 0.3π£Μ. Its speed after 10 s is
with
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