Acar slow down at -5.00 m/s2 until it comes to a stop after traveling 15.0 m. what was the initial speed of the car? (unit=m/s)

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.)

Chemical energy is a form of energy. a. heat b. kinetic c. potential d. electromagnetic

Which of the following is not a means to accelerating? question 4 options: a)increase speed b)remain still c)decrease speed d)change direction