Question

A ball with an initial velocity of zero is dropped from a table onto the ground. After 2 s, the
ball hits the ground. Approximately how fast is the ball traveling when it hits the ground?
10m/s
20m/s
30m/s
40m/s

Answer 1

• Initial velocity=u=0m/s
• Acceleration=a=10m/s^2
• Time=t=2s

Final velocity=v

$\\ \sf\longmapsto v=u+at$

$\\ \sf\longmapsto v=0+10(2)$

$\\ \sf\longmapsto v=20m/s$

Answer 2

Answer to your question is 20 m/s got it right on the test :)