Answer:
11 or 10 meters a second
Explanation:
pretty sure thats my explanation "pretty sure" like my confidence? mark me brainliest bad at spelling lol
The ball's horizontal and vertical velocities at time
are


but the ball is thrown horizontally, so
. Its horizontal and vertical positions at time
are


The ball travels 22 m horizontally from where it was thrown, so

from which we find the time it takes for the ball to land on the ground is

When it lands,
and


Answer:
Explanation:
Case-A
Block weight 
Friction Force 
and friction force is

where N=normal reaction (Usually equals to weight)


Case-B
Block weight 
Friction Force 



Case-C
Block weight 
Friction Force 


