Answer: 44.4 N
Explanation:
from the question we are given the following
distance (s) = 1 m
tine (t) = 1.6 s
mass = 4.2 kg
acceleration due to gravity (g) = 9.8 m/s
acceleration of the bundle (a) can be gotten from the formula s = ut + (1/2)at^2
where s = distance, u = initial velocity ( which is 0 in this case because the elevator started from rest), a = acceleration and t = time
1 = (0 x 1.6) + (1/2) x a x 1.6^2
1 = 1.28 x a
a = 0.78 m/s^2
to get the tension we apply the formula tension = (m x a) + (m x g)
tension = (4.2 x 0.78) + ( 4.2 x 9.8)
tension = 44.4 N
