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| 1. |
a An object is moving mith a uniform acceleration () Starting with an initial velocity (u). It acquires the final nelocity (v) in the time internal (it). Represents the distance travelled by the object in the time interval (3) |
| Answer» <html><body><p><strong><a href="https://interviewquestions.tuteehub.com/tag/answer-15557" style="font-weight:bold;" target="_blank" title="Click to know more about ANSWER">ANSWER</a>:</strong></p><p><a href="https://interviewquestions.tuteehub.com/tag/correct-409949" style="font-weight:bold;" target="_blank" title="Click to know more about CORRECT">CORRECT</a> option is</p><p>B</p><p>(v− </p><p>2</p><p>at</p><p></p><p> )</p><p>D</p><p>(u+ </p><p>2</p><p>at</p><p></p><p> )</p><p>S=ut+ </p><p>2</p><p>1</p><p></p><p> at </p><p>2</p><p> </p><p>v=u+at</p><p><a href="https://interviewquestions.tuteehub.com/tag/average-13416" style="font-weight:bold;" target="_blank" title="Click to know more about AVERAGE">AVERAGE</a> velocity = </p><p>Total time(t)</p><p>Total displacement(s)</p><p></p><p> = </p><p>t</p><p>ut+ </p><p>2</p><p>1</p><p></p><p> at </p><p>2</p><p> </p><p></p><p> =u+ </p><p>2</p><p>1</p><p></p><p> at</p><p></p><p>Substitute, u=v−at in the above expression:</p><p>We get average velocity =v−at+ </p><p>2</p><p>1</p><p></p><p> at=v− </p><p>2</p><p>1</p><p></p><p> at</p><p>Thus, two <a href="https://interviewquestions.tuteehub.com/tag/options-1137914" style="font-weight:bold;" target="_blank" title="Click to know more about OPTIONS">OPTIONS</a> are correct.</p></body></html> | |