Dale and Alex push on opposite sides of a couch. Dale pushes to the left with a force of 100 N, while Alex pushes to the right with a force of 175 N. If the couch has a mass of 55 kg, what is the acceleration of the couch?

Gravity is pulling an object into the sun. the closer the object gets to the sun, the greater the gravitational force that acts on the object, increasing its acceleration. a line graph plotting the speed of the object against time would have which shape? a: straight line of positive slope b: curved line that slopes upward c: curved line that slopes downward d: straight line of negative slope