when a pitcher throws a baseball, it reaches a top speed of 45 m/s. if the
baseball takes 0.9 seconds to travel from the pitcher to the catcher, what is
its acceleration? (assume the ball is moving at 0 m/s right before it leaves
the pitcher's hand.)

a. 45 m/s2

b. 50 m/s2

c. 55m/s 2

d. 40 m/s2

B. 50 m/s²

Explanation:

Given:

Initial velocity of the ball is,

Final velocity of the ball is,

Time taken by the  ball is,

Acceleration is defined as the rate of change of velocity. So, the velocity of the ball is changing with time. So, acceleration is given as:

Plug in 0 for 'u', 45 for 'v', 0.9 for 't' and solve for acceleration, 'a'. This gives,

Therefore, the acceleration of the ball is 50 m/s².

the cellphone, they would then know if the killer would have contacted them or always hated them. or if it was a breakup. but if that is not the case, then it would be the clothing. to put in a bullet, it would have to be put in by hands. hands have finger prints which, would have giving you the answer of who done it.

explanation:

grav forces affect all objects magnetic forces affect magnetic objects and electric currents