Answer to Question #56262 in Mechanics | Relativity for adeshina

Question #56262
18 a boy throws a ball vertically upward with a speed of 15.0m/s. what is its speed just before the boy catches it again? 11.5 m/s downward 225.0 m/s downward 15.0 m/s downward 250 m/s downward 19 a ball is thrown vertically upward with a speed v from a point h metres above the ground. which of the following correctly expresses the time taken to for the ball to strike the ground? vg(1+1+2hgv2−−−−−−−√) vg(1−1+2hgv3−−−−−−−√) vg(1+1−2hgv2−−−−−−−√) vg(1+1−2hgv3−−−−−−−√) 20 a body moves along the x-axis according to the law x=2t3+5t2+5 , where x is in metres. find the acceleration at t=3s 34m/s2 46m/s2 44m/s2 36m/s2
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2016-02-14T00:00:51-0500
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