4. Un automóvil de 85Kg de masa, a 2m de distancia con una velocidad inicial en reposo y una velocidad final de 800J. a) Cuál es la energía cinética del automóvil?

b) Determinar el trabajo total que efectuó la energía cinética del automóvil
Respuesta con procedimiento porfa.

Drag each tile to the correct box. tiles bra i sequence

Awater slide of length l has a vertical drop of h. abby's mass is m. an average friction force of magnitude f opposes her motion. she starts down the slide at initial speed vi. use work-energy ideas to develop an expression for her speed at the bottom of the slide. then evaluate your result using unit analysis and limiting case analysis. express your answer in terms of the variables h, m, l, vi, f and appropriate constants. vf v f

Abaseball is thrown from the outfield toward the catcher. when the ball reaches its highest point, which statement is true? (a)its velocity is not zero, but its acceleration is zero. (b) its velocity and its acceleration are both zero. (c) its velocity is perpendicular to its acceleration. (d) its acceleration depends on the angle at which the ball was thrown. (e) none of the above statements are true.