A1 130.0 kg car traveling initially with a speed of 25.000 m/s in an easterly direction crashes into the back of a 9 300.0 kg truck moving in the same direction at 20.000 m/s. The velocity of the car right after the collision is 18.000 m/s to the east. Vei Ver Before After (a) What is the velocity of the truck right after the collision? (Give your answer to five significant figures.) O 20.85 x Check the number of significant figures. m/s east (b) What is the change in mechanical energy of the car-truck system in the collision? 8605.375 The response you submitted has the wrong sign. J (c) More Information.Account for this change in mechanical energy. converted into heat energy

A1 130.0 kg car traveling initially with a speed of 25.000 m/s in an easterly direction crashes into the back of a 9 300.0 kg truck moving in the same direction at 20.000 m/s. The velocity of the car right after the collision is 18.000 m/s to the east. Vei Ver Before After (a) What is the velocity of the truck right after the collision? (Give your answer to five significant figures.) O 20.85 x Check the number of significant figures. m/s east (b) What is the change in mechanical energy of the car-truck system in the collision? 8605.375 The response you submitted has the wrong sign. J (c) More Information.Account for this change in mechanical energy. converted into heat energy