a body moves on frictionless surface forward along a straight line it uses q velocity 48km/hr for ⅓ of the total path and it's motion is continued so that it uses 52 km/hr for ⅔ of the total path then calculate the average velocity of the body

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.)

Need this now! do pilots live long

Will mark as brainliest how does a catapult increase the trajectory of an object? ps. answer as if u were a 5th grader