Match the column : A particle is moving along x-axis.Its x-coordinate is varying with time as x = –20t + 5t 2 . For the given equation match the following columns. Column-IColumn-II(i) At what time particle changes its direction of motion[A] 1 sec(ii) At what time magnitude of velocity & acceleration are equal[B] 2 sec(iii) In how much time, distance travelled by the particle becomes 25 m[C] 3 sec(iv) In how much time the displacement of the particle becomes 15 m[D] 4 sec[E] None of the above

Match the column : A particle is moving along x-axis.Its x-…

Physics Motion in a Straight Line Mix MCQ (Single Correct)

Match the column :

A particle is moving along x-axis.Its x-coordinate is varying with time as x = –20t + 5t 2 . For the given

equation match the following columns.

Column-I	Column-II
(i) At what time particle changes its direction of motion	[A] 1 sec
(ii) At what time magnitude of velocity & acceleration are equal	[B] 2 sec
(iii) In how much time, distance travelled by the particle becomes 25 m	[C] 3 sec
(iv) In how much time the displacement of the particle becomes 15 m	[D] 4 sec
	[E] None of the above

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The correct answer is:

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Ans.

(i) [B]

(ii) [C]

(iii) [C]

(iv) [A, C]

Sol. Particle will change the direction of motion

when = 0 ⇒ –20 + 10t = 0 ⇒ t = 2 sec

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