Question

19. "An object has a mass of 40 kilograms. What is its
weight on the surface of the moon?" *
(A) 40 N
O
(B) 64 N
O
(C) 54 N
(D) 44 N​

Answer 1

Answer:

b)64N

Explanation:

40kg is a measure of mass. To calculate weight of an object, you multiply mass by the acceleration due to Gravity. On the Moon, the acceleration due to gravity is 1.625m/s21.625m/s2 so the weight of a 40kg40kg object would be 40kg∗1.625m/s2=65N40kg∗1.625m/s2=65N

Incidentally, the same object would weigh 392.4N392.4N on Earth because 40kg∗9.81m/s2=392.4N40kg∗9.81m/s2=392.4N, or roughly six times more than on the moon.