Question 13 0/1 pt 9 10 9 0 Details 7 A 0.23 kg ball on a rail is rolled down an incline, and then rolls across a table on a horizontal rail. It leaves the rail, and strikes the floor. Assume friction on the rail is negligible. A student finds that it takes 0.061 seconds to pass through a pair of photogates that are 0.136 m apart. The edge of the rail is 1.11 m above the floor. Find the horizontal velocity of the ball as it passes through the photogates. m/s How long does it take to hit the ground after leaving the rail? How far away from the edge of the table should a student place a coin so that the ball would hit the coin? Question Help: Message instructor Submit