Question

A ball falls a table and reaches the ground in 1 sec assuming g=10 m/s calculate it's height ​

Answer 1

Initial velocity u=0 Let final velocity is v and height is h.

Using v=u+at

⇒v=0−10×1=−10m/s

Using s=ut+

2

1

at

2

⇒−h=0×1−

2

1

×10×1

2

⇒h=5m