Question

An object of mass 6.00 kg falls with an aceleration of 8.00 m/s2. The magnitude of air resitance must be ____ N

Answer 1

Using Newton's Second Law, we can find the air resistance. We know the net force is equal to mass times acceleration.
`F_(net) = m*a = (6.00kg)(8.00 (m)/(s^2)) = 48N F_(g) - F_(d) = 48N 48N = (6.00kg)(9.81m/s^2) - F_(d) F_(d) = 10.86N`