A car is on an inclined plane at an angle of 15 degrees. The car has a free body diagram with three vectors coming from it. The first is parallel to the incline and up the incline labeled F Subscript f Baseline. The force upward and perpendicular to the car is labeled F Subscript N Baseline. The third force pointed down is labeled F Subscript g Baseline and is broken up into two perpendicular components labeled F Subscript g y Baseline and the other F Subscript g x Baseline. Examine the forces acting on a car on a ramp. Select the forces or force components that need to be added together to calculate the net force in the x-direction. Check all that apply. FN –Ff –Fg Fg (cos 15°) Fg (sin 15°)

answer would be letter choice (a),   a ball resting on a shelf. would be another example of potential energy   >   stored energy > not moving.

a ball spinning on a finger   >   kinetic energy > moving energy

a ball rolling on the ground   >   kinetic energy   > moving energy

a   ball flying through the air   > kinetic energy   >   moving energy

hope that                                         : )

the displacement produced by the body.  

the amount of force subjected to the body.  

the angle between the direction of force and displacement

the chart show the masses and velocities of two colliding objects that stick together after a collision.

according to the law of conservation of momentum, the momentum of the object after the collision is  

answer

1,500

kg • m/s.