A crate slides down a 35o ramp with constant speed. What is the coefficient of kinetic friction between the crate and the ramp?

A. 0.08
B. 0.42
C. 0.7
D. 1.2

Question

A crate slides down a 35o ramp with constant speed. What is the coefficient of kinetic friction between the crate and the ramp?


 A. 0.08 
 B. 0.42 
 C. 0.7 
 D. 1.2

amistre64 · Answer

i can almost remember the physics equations, but they deal with forces

amistre64 · Answer

F = ma
F = un

u = ma/n

anonymous · Answer

Constant speed = Forces are equal

anonymous · Answer

Therefore Ff = mgsin35.
Ff = uFn = u(mgcos35)
=>
u(mgcos35) = mgsin35
u =  mgsin35/(mgcos35)
u = tan35

amistre64 · Answer

Total Energy = Energy remaining + Energy lost  was one idea i was having, but its been a long day lol

anonymous · Answer

hahaha one mark for effort amistre