Read each description below. choose the force diagram (free-body diagram) that best represents the description. you may neglect the effects of air resistance. |

a. mark's physics book is on the desk. mark pushes horizontally (from the side) on the book, but the book does not move. |
b. kendall's physics book is on the desk. kendall pushes horizontally (from the side) on the book, and the book moves across the desk at a constant speed. |
c. jenny pushes a cart at constant velocity down the grocery store aisle. |
d. eddy is driving his camaro down a straight, level road while on cruise control. |
e. ryan is accelerating his dakota down a straight, level road. |
f. jackie's viper is parked on the shoulder of the road while she changes a flat tire. |

Which two objects have the greatest gravitational force acting between them

If the speed of a particle triples ,by what factor does its kinetic energy increase?

I'm kinda lost ! 1. when marilyn takes her pet dog for a walk, the dog walks at a veryconsistent pace of 0.55 m/s. draw a position-time graph to representmarilyn's dog walking the 19.8 m distance from the front of her house tothe nearest fire hydrant.2. both car a and car bleave school when a stopwatch reads zero. car atravels at a constant 75 km/h, and car b travels at a constant 85 km/h.a) draw a position-time graph showing the motion of both cars. howfar are the two cars from school when the stopwatch reads 2 hrs? calculate the distances and show them on your graph.b) both cars passed a gas station 120 km from the school. when dideach car pass the gas station? calculate the times and show themon your graph.3. the figure below shows the position-time graph showing a shopper'smovement up and down the aisle at a store.a) write a story describing the shopper's movements at the store.b) when does the shopper have a position of 6 m? c) how much time passes between when the shopper enters the aisleand when he gets to a position of 12 m? what is the shopper's averagevelocity between 37 s and 46 s?