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5 An object is starting from restand moving with an accelerationOb 2 m/s? what willwill be its velocityafter 10 second?2 |
Answer» Perfect questionAn object is starting from rest and moving with an acceleration of 2m/s² . What will be its velocity after 10 seconds ? AnswerGIVEN :Initial velocity = Zero. (object in rest) Acceleration of the object = 2m/s². Time = 10sec. To find :Final velocity of the object. Solution :As we are providing with Initial velocity, accerlation and time, we can use 1st equation of MOTION .i.e.,
where, v denotes final velocity u denotes initial velocity a denotes acceleration t denotes time So, using first equation of motion, ➠ v = u + at ➠ v = (0) + (2)(10) ➠ v = (2)(10) ➠ v = 20m/s thus, velocity after 10 seconds is 20m/s. Some RELATED equation of motion :1st equation of motion : v = u + at 2nd equation of motion : s = ut + 1/2 at² 3rd equation of motion : v² = u² + 2as |
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