The sun is the centermost star of our solar system. a. true b. false

Yes, it is true.

Explanation:

Sun is the centremost part of our solar system as all the planets revolve around the sun due to the gravitational pull between the sun and the planet. The gravitational force of sun holds the entire solar system together keeping everything such as planets, asteroids, comets, etc. in their particular orbits.

here we know that ball will drop down by total distance 3.2 m

so here we know that

now using kinematics

now in the same time it will cover horizontal distance of 0.75 m

so speed of the ball will be