3.Plantea las ecuaciones para la ∑ F = ma de cada una de las masas:∑ Fx = ma (para el taco) :∑ Fy = ma ( para el portapesas) :

Will give brainliest! jay rides his 2.0-kg skateboard. he is moving at speed 5.8 m/s when he pushes off the board and continues to move forward in the air at 5.4 m/s. the board now goes forward at 13 m/s.a. determine jay’s mass.b. determine the change in the internal energy of the system during this process.(express your answer to two significant figures and include the appropriate units.)

Why should seat belts not be mandatory quick plz

Wavelength of 125 meters is moving at a speed of 10 m/s. what is it's frequency?