Acar drives straight ahead for 12 km and then turns right and goes 5 km. if the car ends up directly north of its original position, what is its displacement? a. 7 km south b. 13 km north c. 17 km north d. 25 km south

Give an example of a collision in real life. use the law of conservation of energy to describe the transfer of momentum. be sure and discuss the momentum before and after the collision occurs. you will need at least 3 sentences to thoroughly answer this question.

The velocity of a car traveling in a straight line increases from 0 meters/second to 30meters/second in 8 seconds. what is the average acceleration of the car?

What is the difference between mass density and weight density?