A person of 83 kg is in an elevator. If the elevator is moving at
a speed of 5 m/s, what's the person's kinetic energy? Keep 4
significant figures
a 1,004 J
b 1,038
c 1,280 J
d 980 J
e
1,435 J

Option B) 1038J

Explanation:

Given that

Mass of person (m) = 83kg

kinetic energy (KE) = ?

Speed of elevator (v) = 5m/s

Kinetic energy is the energy possessed by a moving object. It is measured in joules, and depends on the mass (m) of the object and the speed (v) by which it moves

i.e K.E = 1/2mv²

KE = 1/2 x 83kg x (5m/s)²

KE = 0.5 x 83 x 25

KE = 1037.5J (Round the kinetic energy to the nearest whole number as 1038J)

Thus, the kinetic energy of the person is 1038 Joules

the answer would most likely be c, because if it's a comical piece of information, it may likely not be true, if it's a site that allows anybody to edit the content, it could mean a five year old is typing the info, and if it's a tv show produced by a celeb, it may have a biased opinion.