You drive along on a straight road at 20 m/s. The light in front of you turns red and you brake with a constant acceleration. You come to a stop after traveling a distance of 15 meter. Assume you started out driving in the positive direction. a. What is the acceleration of the car?
b. How much time did it take to comes to a stop?

Which units can be used to measure length or distance? check all that apply. gram meter kilometer liter inch

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.)

In a heat engine if 1000 j of heat enters the system the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2000 j? 1. write the equation 2.list out your known variables 3.plug the numbers into the equations 4.solve 5.write your solution statement that includes initial energy and final