Two objects have masses m and 5m, respectively. they both are placed side by side on a frictionless inclined ramp and allowed to slide down from rest without any air resistance. which one of the following statements about these objects is correct? a) the two objects reach the bottom of the ramp at exactly the same time. b) it takes the heavier object 5 times longer to reach the bottom of the ramp than the lighter. c) it takes the lighter object 10 times longer to reach the bottom of the ramp than the heavier. d) it takes the heavier object 10 times longer to reach the bottom of the ramp than the lighter. e) it takes the lighter object 5 times longer to reach the bottom of the ramp than the heavier.

the answer is 12 as i may remember

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chemical energy --> gravitational potential energy --> kinetic energy --> elastic potential energy --> gravitational potential energy

explanation:

when emma starts the hike, the chemical energy stored in her body is used to climb up the mountain, and so she gains gravitational potential energy (because at the end, she will be at a higher height h above the ground). then she goes bungee jumping: as she falls, this gravitational potential energy is converted into kinetic energy (because her speed increases as she falls down), until the point when the rope stretches, and she stops moving. at that moment, all the kinetic energy is converted into elastic potential energy due to the stretching of the rope. then, this energy is released because the rope returns to its natural length, and emma gains a small increase in altitude , so she gains some gravitational potential energy.