Adapted from Young and Freedman (14th edition) exercise 4.4, page 124. A man is dragging a 50kg trunk up the loading ramp of a mover's truck at constant speed. The ramp has a slope angle of 20.0° and the man pulls upward with a force whose direction makes an angle of 30° with the ramp (Fig. E4.4). The dynamic coefficient of friction between the trunk and the ramp is 0.2. Give all answers to 3 significant figures. Use 9.8 m/s² for g. (a) What is the magnitude of the normal force provided by the ramp? FN = 460.45 460.45 (b) What is the force Frequired to drag the trunk up the ramp? F = 167 N X 167 NX 30.0⁰ 20.0° Figure E4.4 Save

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Adapted from Young and Freedman (14th edition) exercise 4.4, page
124.
A man is dragging a 50kg trunk up the loading ramp of a mover's truck
at constant speed. The ramp has a slope angle of 20.0° and the man
pulls upward with a force whose direction makes an angle of 30°
with the ramp (Fig. E4.4). The dynamic coefficient of friction between
the trunk and the ramp is 0.2. Give all answers to 3 significant figures.
Use 9.8 m/s² for g.
(a) What is the magnitude of the normal force provided by the ramp?
FN
460.45
460.45
(b) What is the force |F| required to drag the trunk up the ramp?
=
167
167
N X
Submit
N X
30.0⁰
20.0°
Figure E4.4
Save
Transcribed Image Text:Adapted from Young and Freedman (14th edition) exercise 4.4, page 124. A man is dragging a 50kg trunk up the loading ramp of a mover's truck at constant speed. The ramp has a slope angle of 20.0° and the man pulls upward with a force whose direction makes an angle of 30° with the ramp (Fig. E4.4). The dynamic coefficient of friction between the trunk and the ramp is 0.2. Give all answers to 3 significant figures. Use 9.8 m/s² for g. (a) What is the magnitude of the normal force provided by the ramp? FN 460.45 460.45 (b) What is the force |F| required to drag the trunk up the ramp? = 167 167 N X Submit N X 30.0⁰ 20.0° Figure E4.4 Save
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