Math Problem Statement
Dues atletes fan la cursa dels 800 m llisos. L’atleta amb el dorsal 1 corre els últims 400 m a una velocitat constant de 12 m/s, mentre que l’atleta amb el dorsal 2 passa 2 s més tard pel punt dels 400 m a una velocitat de 10 m/s, fa l’últim tram de la cursa amb MRUA i l’acaba a una velocitat de 20 m/s. d) En quin punt passa una atleta davant de l’altra? e) Qui guanya la cursa?
Solution
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Math Problem Analysis
Mathematical Concepts
Kinematics
Uniform Motion
Uniformly Accelerated Motion (MRUA)
Formulas
v = d/t (velocity formula for constant speed)
v_f = v_i + at (final velocity in uniformly accelerated motion)
x = v_i * t + (1/2) * a * t^2 (distance in uniformly accelerated motion)
Theorems
Kinematic equations of motion
Suitable Grade Level
Grades 9-12
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