Question

A particle initial at rest (u = - 10 m/s) , Acceleration(a) =2 m/s square . find Final velocity at t= 5sec ?​

Answer 1

Hey friend!

Correct Question : A particle is initially at  u = - 10 m/s , and Acceleration(a) = 2 m/s square . Find Final velocity at t =  5 sec ?​

Answer:

0 m/s

Explanation:

$Given,\\\star \ initial \ velocity, \ u = - 10 \ m/s\\\star \ Acceleration, \ a = 2 \ m/s^2\\\star \ time, \ t = 5 \ s\\\\\\Now, \\\\We \ know \ from \ the \ first \ equation \ of motion \ that \\\\\ v = u + at \\\\According \ to \ the \ question:\\\\v = u + at \\\\\implies \ v = -10 + 2 * 5\\\\\implies \ v = -10 + 10\\\\\implies v = 0 \ m/s\\\\\\Hence, \ the \ motion \ of \ the \ object \ decelerates \ to \ rest \ at \ time = 5 \ s$

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