Starting from rest, an intern pushes a 48-kg gurney 20 m down the hall with a constant force of 80 n directed downward at an angle of 35∘ with respect to the horizontal. ignore friction. how much time elapses during the 20-m journey? express your answer with the appropriate units.

The time elapses is

t = 2.70 s

Explanation:

The axis x' is the only one influence the work so

work = F*cosΘ*d

W = 80N *cos(35º) * 20m

W = 1310.64 J

work = ΔKE

1310.64 J = ½ * 48kg * v²

Solve to v

v = 7.39m/s

t = d / Vavg

t = 20m / 7.39 m/s

t = 2.70 s

c because the action was the roller coaster reaches bottom of hill (action) reaction would be blood tends to drain away from head

hope this !

answer: 31, 5556. 952 seconds