Question

A ball of paper fell out of the window from a 3-story building. If the paper had a mass of 0.02kg and fell at a rate of -6.45 m/s^2, how much upward force was applied to the paper?

a) 0.02 N
b) 0.12 N
c) 0.13 N
d) 0.14 N

Answer 1

The upward force applied to the paper is approximately 0.13 N.

Step-by-step explanation:

To calculate the upward force applied to the paper, we can use Newton's second law of motion, which states that force is equal to mass times acceleration. In this case, the mass of the paper is 0.02 kg and the acceleration is -6.45 m/s^2. Using these values, we can calculate the force:

Force = mass * acceleration = 0.02 kg * (-6.45 m/s^2) = -0.129 N

Since the direction of the force is upward, we take the absolute value to get the magnitude of the force: 0.129 N. Therefore, the upward force applied to the paper is approximately 0.13 N.