You are lowering two boxes, one on top of the other, down the ramp shown in the figure (Figure 1) by pulling on a rope parallel to the surface of the ramp. Both boxes move together at a constant speed of 10.0 cm/s. The coefficient of kinetic friction between the ramp and the lower box is 0.470, and the coefficient of static friction between the two boxes is 0.781. Figure 32.0 kg 48.0 kg 4.75 m < 1 of 1 2.50 m What force do you need to exert to accomplish this? ΜΕ ΑΣΦ T= Submit Request Answer Part B ? What is the magnitude of the friction force on the upper box? ΜΕ ΑΣΦ f= ? N N Part C What is the direction of the friction force on the upper box? O up the ramp O down the ramp
You are lowering two boxes, one on top of the other, down the ramp shown in the figure (Figure 1) by pulling on a rope parallel to the surface of the ramp. Both boxes move together at a constant speed of 10.0 cm/s. The coefficient of kinetic friction between the ramp and the lower box is 0.470, and the coefficient of static friction between the two boxes is 0.781. Figure 32.0 kg 48.0 kg 4.75 m < 1 of 1 2.50 m What force do you need to exert to accomplish this? ΜΕ ΑΣΦ T= Submit Request Answer Part B ? What is the magnitude of the friction force on the upper box? ΜΕ ΑΣΦ f= ? N N Part C What is the direction of the friction force on the upper box? O up the ramp O down the ramp
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Author:Raymond A. Serway, Chris Vuille
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Transcribed Image Text:You are lowering two boxes, one on top of the other,
down the ramp shown in the figure (Figure 1) by
pulling on a rope parallel to the surface of the ramp.
Both boxes move together at a constant speed of 10.0
cm/s. The coefficient of kinetic friction between the
ramp and the lower box is 0.470, and the coefficient of
static friction between the two boxes is 0.781.
Figure
32.0
kg
48.0
kg
4.75 m
<
1 of 1
2.50
m
Transcribed Image Text:What force do you need to exert to accomplish this?
ΜΕ ΑΣΦ
T=
Submit
Request Answer
Part B
?
What is the magnitude of the friction force on the upper box?
ΜΕ ΑΣΦ
f=
?
N
N
Part C
What is the direction of the friction force on the upper box?
O up the ramp
O down the ramp
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