InterviewSolution
Saved Bookmarks
InterviewSolution
| 1. |
A ball falls freely from a height and after striking the ground, rebounds to its starting point. Which of the following graphs (fig) shows the variation in its vertical acceleration a with time t : |
| Answer» <p class="MsoNormal" style="text-align: justify;"><span style="font-family:Arial,Helvetica,sans-serif"><span style="color:#000000"><strong>Correct option (d)</strong></span></span></p><p class="MsoNormal" style="text-align: justify;"><span style="font-family:Arial,Helvetica,sans-serif"><span style="color:#000000"><strong>Explanation:</strong></span></span></p><p style="text-align: justify;"><span style="font-family:Arial,Helvetica,sans-serif"><span style="color:#000000">When the ball falls freely on the ground and rebounds its starting point, the acceleration is instantaneously changed but the magnitude remains the same.</span></span></p> | |