# A wagon is pulled a distance of 100m along a horizontal path by aconstant force of 50N. The handle of the wagon is held at an angleof 30^{\circ} above the horizontal. How much work is done?

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A wagon is pulled a distance of 100m along a horizontal path by aconstant force of 50N. The handle of the wagon is held at an angleof $$\displaystyle{30}^{{\circ}}$$ above the horizontal. How much work is done?

2021-02-20
$$\displaystyle{W}={F}{\left(\triangle{x}\right)}{\cos{{\left({0}\right)}}}={50}{N}{\left({100}{m}\right)}{\cos{{\left({30}^{{\circ}}\right)}}}={4330}$$. 1J
W=4330. 1J

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When a gas is taken from a to c along the curved path in the figure (Figure 1) , the work done by the gas is W = -40 J and the heat added to the gas is Q = -140 J . Along path abc, the work done by the gas is W = -50 J . (That is, 50 J of work is done on the gas.)
I keep on missing Part D. The answer for part D is not -150,150,-155,108,105( was close but it said not quite check calculations)
Part A
What is Q for path abc?
Express your answer to two significant figures and include the appropriate units.
Part B
f Pc=1/2Pb, what is W for path cda?
Express your answer to two significant figures and include the appropriate units.
Part C
What is Q for path cda?
Express your answer to two significant figures and include the appropriate units.
Part D
What is Ua?Uc?
Express your answer to two significant figures and include the appropriate units.
Part E
If Ud?Uc=42J, what is Q for path da?
Express your answer to two significant figures and include the appropriate units.