Respuesta:
Explicación:
Datos:
m =10 kg
vo= 5 m/s
vf = 40 km/h = 11.11 m/s
d = 25 m
vf² - vo² ( 11.11 m/s)² - (5 m/s)² 98.4321 m²/s²
a = -------------- = ------------------------------- = --------------------- = 1.96 m/s²
2d 2 x 25 m 50 m
F = m x a
F = 10 kg x 1.96 m/s²
F = 19.6 N
vf - vo 11.11 m/s - 5 m/s 6.11 m/s
t = ------------ = ------------------------- = ------------- =3.11 seg
a 1.96 m/s² 1.96 m/s²