A jogger runs 6 km north, 5 km east, then another 4 km north. Her average speed 8 km/h, and it took her 1.9 hours to complete. What was her average velocity?

Jason is a body builder. despite being more fit, he weighs more than his brother ryan, who is the same height. which is a possible reason? a. jason has more muscle mass than ryan does. b. jason has more body fat than ryan does. c. jason has more muscle mass and body fat than ryan does d. jason has less body fat than ryan does.

Acar moves at 12m/s and coasts up a hill with a uniform acceleration of -1.6m/s2. how far has it traveled after 6.0s?

When an object is heated it contracts. a. true b. false