Help for the physics questions?

Question

A baseball player throws a baseball with a horizontal velocity of 100m/s west. The ball hits the ground 0.5 seconds later.

 

1.) With what vertical velocity does the ball land?

 

2.) How tall is the baseball player?

 

3.) How far did the baseball player throw the ball?

 

Answer three questions and show work please.

Answer 1

v₀ = v_0x = 100 m/s ; v_0y = 0

 

1) after time t  v_y = gt = 9.8*0.5 = 4.9 m/s

2) height of th baseball player is ambiguous but height at which the ball is thrown horizontally is calculable

y = gt²/2 = 9.8*(0.5)²/2 = 2.45 m

3) x = v₀*t = 100 * (0.5) = 50 m