Normal 0false false falseEN-US X-NONE X-NONE/* Style Definitions */table.MsoNormalTable{mso-style-name:Table Normal;mso-tstyle-rowband-size:0;mso-tstyle-colband-size:0;mso-style-noshow:yes;mso-style-priority:99;mso-style-parent:;mso-padding-alt:0in 5.4pt 0in 5.4pt;mso-para-margin-top:0in;mso-para-margin-right:0in;mso-para-margin-bottom:10.0pt;mso-para-margin-left:0in;line-height:115%;mso-pagination:widow-orphan;font-size:11.0pt;font-family:Calibri,sans-serif;mso-ascii-font-family:Calibri;mso-ascii-theme-font:minor-latin;mso-hansi-font-family:Calibri;mso-hansi-theme-font:minor-latin;mso-bidi-font-family:Times New Roman;mso-bidi-theme-font:minor-bidi;}A stone is dropped from a certain height which can reach the ground in 5 second. If the stone is stopped after 3 seconds of its fall and then allowed to fall again, then the time taken by the stone to reach the ground for the remaining distance is(a) 2 sec(b) 3 sec(c) 4 sec(d) none of these
Kevin Nash , 11 Years ago
Grade upto college level
1 Answers
Radhika Batra
Last Activity: 11 Years ago
(c)
h = 1/2 g(5)2, h1 = 1/2 g(3)2
h – h1 = 1/2 gt2
1/2 g(5)2 – 1/2 g(3)2 = 1/2 gt2 ? t = 4 sec.
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