Question

Boston Red Sox pitcher Roger Clemens could routinely throw a fast ball at a horizontal speed of 160 km. How long did the ball take to reach home plate 18.4m away? 

Answer 1

Answer

horizontal speed of v=160 m/s

Distance d=18.4m

Time taken

$Time=\frac{distance}{speed}\\=\frac{18.4}{160}\\=0.115 sec.$