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

answer: the direction of the wind is expressed as the direction from which the wind is blowing. for example, easterly winds blow from east to west, while westerly winds blow from west to east.

explanation:

temp rises, and expansion