Question

a ball falls off table and reaches the ground in 1s. assuming g=10m/s.calculate it's speed on reaching ground and height of the table​

Answer 1

Answer:

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