What is an additional safety feature that could have to reduce the force felt by the drivers of both cars even more? a. a front-end crumple zone installed in the orange car b. a rear-end crumple zone installed in the blue car c. a locking brake system installed in the orange car, preventing its wheels from moving d. a rear-end crumple zone installed in the orange car

Which statement is true? a) the work done to lift an object 6 meters is greater than the gravitational potential energy it gains. b) the work required to push an object is less than the work required to pull an object the same distance. c) the work required to raise an object to a height is equal to the gravitational potential energy the object gains. d) the work done against gravity to lift an object straight up is greater than the work required to roll it up a ramp.