Hint: You don't need to know the horizontal initial velocity to solve this. The vertical distance fallen in time T is (1/2)gT^2
H = 4.9*(0.34)^2 = ___
A ball is rolled horizontally off a table with an initial speed of 4.0 m/s. A stopwatch measures the ball's trajectory time from table to the floor to be 0.34 s. What is the height of the table? (g = 9.8 m/s2 and air resistance is negligible)
A) 0.11 m
B) 0.22 m
C) 0.33 m
D) 0.44 m
E) 0.57 m
2 answers
0.11m