Which motor and body should devon use to build the car with the greatest acceleration? (n) o motor 1, with body 1 motor 1, with body 2 o motor 2, with body 1 o motor 2, with body 2 ble (kg) 2 6

The illuminance of a surface varies inversely with the square of its distance from the light source. if the illuminance of a surface is 120 lumens per square meter when its distance from a certain light source is 6 meters, by how many meters should the distance of the surface from the source be increased to reduce its illuminance to 30 lumens per square meter?