Two children stand on a platform at the top of a curving slide next to a backyard swimming pool. at the same moment the smaller child hops off to jump straight down into the pool, the bigger child releases herself at the top of the frictionless slide.
(i) upon reaching the water, how does the kinetic energy of the smaller child compare with that of the larger child?
it is greater. it is less. the two energies are equal.
(ii) upon reaching the water, how does the speed of the smaller child compare with that of the larger child is?
it is greater. it is less. the two speeds are equal.
(iii) during their motions from the platform to the water, how does the average acceleration of the smaller child compare with that of the larger child? it is greater. it is less. the two accelerations are equal.
the first and third are wrong