# A body moves a distance of 15 m in a 15mins, with an initial velocity of 0m/min. What is the final velocity in m/min?

Category: QuestionsA body moves a distance of 15 m in a 15mins, with an initial velocity of 0m/min. What is the final velocity in m/min?
Editor">Editor Staff asked 1 year ago

A body moves a distance of 15 m in a 15mins, with an initial velocity of 0m/min. What is the final velocity in m/min?

(a) 2

(b) 8

(c) 5

(d) 6

I got this question in an internship interview.

My question is taken from Kinematic Equations for Uniformly Accelerated Motion in chapter Motion in a Straight Line of Physics – Class 11
Select the correct answer from above options
Interview Questions and Answers, Database Interview Questions and Answers for Freshers and Experience

Editor">Editor Staff answered 1 year ago

The correct choice is (a) 2

Easy explanation: Use the second equation of motion to find the acceleration. s = ut + (1/2)at^2, u = 0, t =15, s=15, therefore, a = 2/15 m/min^2. Now use the first equation to find the final velocity. v = u + at, u = 0, t = 15 min, a = 2/15, therefore, v = 2 m/min.

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