Which of these accurately describes Newton's third law? "The relationship among mass, acceleration and net force." "The stronger the net force acting upon an object, the greater the acceleration of the object." "For every action force, there is an equal and opposite reaction force." "An object in motion stays in motion, and an object at rest stays at rest, unless an unbalanced force acts upon it."

A 2100 kg truck has put its front bumper against the rear bumper of a 2400 kg SUV to give it a push. With the engine at full power and good tires on good pavement, the maximum forward force on the truck is 18,000 N. What is the maximum possible acceleration the truck can give the SUV? At this acceleration, what is the force of the SUV's bumper on the truck's bumper?

A skydiver weighing 203 lbf (including equipment) falls vertically downward from an altitude of 5000 ft and opens the parachute after 14 s of free fall. Assume that the force of air resistance, which is directed opposite to the velocity, is 0.77 |v| when the parachute is closed and 10 |v| when the parachute is open, where the velocity v is measured in ft/s. Use g = 32 ft/s². Round your answers to two decimal places. (a) Find the speed of the skydiver when the parachute opens. v(14) = i (b) Find the distance fallen before the parachute opens. x (14) = i ft ft/s (c) What is the limiting velocity after the parachute opens? UL = i ft/s

Which of the following statement/s is/are correct regarding the concepts of motion?   According to Aristotle, a body that is stationary will continue to be stationary unless a force is applied to it. According to Aristotle, a falling body accelerates because its weight increases as it approaches Earth’s surface. According to Galileo, a body in motion along a frictionless surface does not need an external force to maintain its motion. According to Galileo, objects fall at the same rate even if one object is more massive than the other object.  1 and 2 3 and 4  1,3, and 4 1,2,3 and 4   Which of the following is a correct explanation to one of the consequences of Special Relativity? A. Time Dilation describes that twins would have different age difference if they both travel close to the speed of light. B. Mass-energy Equivalence paved the way for humans to create grenades to be used during wars and political conflicts. C. Relativity of Simultaneity implies that two events would not…