You drag a(n) 17.4 kg steamer trunk over a rough surface by a constant force of 173 n acting at an angle of 31.5 ◦ above the horizontal. you move the trunk over a distance of 13.4 m in a straight line, and the coefficient of kinetic friction is 0.148. the acceleration of gravity is 9.8 m/s2 .

how much is the work done on the block by the net force?
answer in units of j.

1817.67 J

Explanation:

mass, m = 17.4 kg

Applied force, F = 173 N

θ = 31.5°

distance, s = 13.4 m

μ = 0.148

g = 9.8 m/s^2

According to the diagram

Let N be the normal reaction and f be the friction force.

Net force in vertical direction is zero. So, N + F Sinθ = mg

N = mg - F Sinθ

N = 17.4 x 9.8 - 173 x Sin 31.5°

N = 170.52 - 90.4

N = 80.12 N

Friction force, f = μ N = 0.148 x 80.12 = 11.86 N

net force, Fnet = F cos θ - f

F net = 173 Cos 31.5 - 11.86

F net = 135.65 N

Work don by net force

W = F net x distance

W = 135.65 x 13.4

W = 1817.67 J

Thus, the work done by the net force is 1817.67 J.

weather forecasts are done by collecting data about the current state of the atmosphere mainly the temperature, humidity and wind and using meteorology, to determine the atmosphere that evolves over time. the h and l mean the high and low pressure. the red strip is a warm front. the blue strip is a cold front. the blue and red strip is a stationary front. the purple strip is a occluded front.

explanation: