3. A person of mass 100 kg stands on a scale in an elevator. The elevator moves downward at a steady speed. Is the scale reading greater than, less than, or equal to 1000 N? Justify your answer.

less than

Explanation:

Given;

mass of the person, m = 100 kg

acceleration due to gravity, g = 9.8 m/s²

The reading on the scale is determined by applying Newton's second law of motion;

R = mg - ma

R = m(g-a)

at constant velocity, the acceleration is zero

a = 0

R = m(g-0)

R = mg

R = 100 x 9.8

R = 980 N

Thus, the scale reading is equal to the weight of the person but less than 1000 N

A differentiated body is a body that has been heated to the point where it is are further from the sun larger have no solid surface and have many more moons  Smaller chunks of material vaporize completely as they pass through its atmosphere

Explanation: