The velocity of a particle at an instant is 10 ms⁻¹ and after 5 s the velocity of the particle is 20 ms⁻¹.The velocity 3s before in ms⁻¹ was

Options

(a) 8 ms⁻¹
(b) 4 ms⁻¹
(c) 6 ms⁻¹
(d) 7 ms⁻¹

Correct Answer:

4 ms⁻¹

Explanation:

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