a-car-is-being-pulled-by-a-tow-truck-along-a-straight-road-the-tow-truck-exerts-

Question

A car is being pulled by a tow truck along a straight road. The tow truck exerts a constant force ﻿F→\overrightarrow{F}F﻿ = (250 î + 150 ĵ) N on the car as it moves along the road. If the car experiences a displacement ﻿d→\overrightarrow{d}d﻿ = (120 î + 80 ĵ) m, determine the work done by the tow truck using: (i) W = Fd cosθ ; (ii) W = $$F_{x}d$$_{x} + $$F_{y}d$$_{y} .

Accepted Answer

i. 42﻿×	imes×﻿$$10^{3} J$$, ii. 42﻿×	imes×﻿$$10^{3} J$$

Answer

i. 38﻿×	imes×﻿$$10^{3} J$$, ii. 38﻿×	imes×﻿$$10^{3} J$$

Answer

i. 38﻿×	imes×﻿$$10^{3} J$$, ii. 42﻿×	imes×﻿$$10^{3} J$$

Answer

i. 36﻿×	imes×﻿$$10^{3} J$$, ii. 36﻿×	imes×﻿$$10^{3} J$$