In previous problem, average speed during the motion of the particle i

1.	In previous problem, average speed during the motion of the particle is.A. `8 m//s`B. zeroC. `4 m//s`D. `16 m//s`
Answer» Correct Answer - A Distance travelled `s = (1)/(2) a_1 t_1^2 + (1)/(2) a_2 t_2^2 = (1)/(2) 4(4)^2 + (1)/(2)(2)(8)^2` [Acceleration in second part will be half of first part because time taken is double] `rArr s = 96 mv_(av) = (96)/(4 + 8) = 8 m//s`.

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In previous problem, average speed during the motion of the particle is.A. `8 m//s`B. zeroC. `4 m//s`D. `16 m//s`

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