Two people are standing on rollerskates. One is more massive than the other. They push against each other and move away. How do their velocities compare?
O a. they move at the same speed
O b. the more massive person moves faster
O c. The more massive person moves slower
O d. the less massive person moves slower

Ineed asap! list 3 examples in which friction us or makes things easier in our daily life. explain the effect of friction for each. *make sure you explain the effect of friction for each example! *

Acar travels in reverse. it covers 150 meters in 12 seconds what is the velocity of the car what is the speed of the car

In a heat engine if 1000 j of heat enters the system and the piston does 500j of work, what is the final internal energy of the system if the inital energy was 2000 j1.write the equation2.list out your known variables 3. plug the numbers into the equations4.solve 5.write your solution statement that includes initial energy and final energy added.