Parte1.
Vo = 0, a = 2 m / s², t = 4s, Vf - Vo = at d1 = Vot + <img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B1%7D%7B2%7D%20%20%20" />g t² Vf = at + Vo d1 = <img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B1%7D%7B2%7D%20%20" /> (2)(4²) Vf = (2)(4) d1 = 16m Vf = 8 m / s
parte 2.
V = 8 m / s, t = 3s d2 = Vt d2 = (8)(3) d2 = 24 m
parte 3.
Vo = 8 m / s, Vf = 4 m / s, t = 3s V - Vo = at V² - Vo² = 2ad a = <img src="https://tex.z-dn.net/?f=%20%5Cfrac%7BV-Vo%7D%7Bt%7D%20" /> d3 = <img src="https://tex.z-dn.net/?f=%20%5Cfrac%7BV%20%5E%7B2%7D%20-%20Vo%5E%7B2%7D%20%7D%7B2a%7D%20" /> a = <img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B4-8%7D%7B3%7D%20%20" /> d3 = <img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B%28%204%5E%7B2%7D%20-%20%208%5E%7B2%7D%20%29%7D%7B%282%29%28-1.333%29%7D%20" /> a = - 1.
333 m / s² d3 = 18m
parte 4.
V = 4 m / s, t = 4s d = Vt d4 = (4)(4) d4 = 16m
parte 5.
Vo = 4 m / s, Vf = 0, t = 2s a = <img src="https://tex.z-dn.net/?f=%20%5Cfrac%7BVf-%20Vo%7D%7Bt%7D%20%20" /> d = <img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B%20Vf%5E%7B2%7D%20%20Vo%5E%7B2%7D%20%7D%7B2a%7D%20" /> a = <img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B0-%20%204%5E%7B2%7D%20%20%7D%7B%282%29%28-2%29%7D%20" />d5 = <img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B%20-%204%5E%7B2%7D%20%7D%7B%282%29%28-2%29%7D%20" /> a = - 2m / s² d5 = 4m
d = 16 + 24 + 18 + 16 + 4
d = 78m.