A 39 kg crate sits on a horizontal floor. The coefficients of static and kinetic friction...
A 39 kg crate sits on a horizontal floor. The coefficients of
static and kinetic friction between the crate and floor are 0.6 and
0.4, respectively. Use a coordinate system with +y pointing
upwards.
a) How much force do you need to apply to get the crate sliding
along the floor?
[ , , ] N
b) If the crate is moving with a speed of [0.8, 0, 0] m/s, what
force is it experiencing due to friction as it slides?
[ , , ] N
c) If you instead have a crate with wheels, and the associated
coefficients of static and kinetic friction are 0.5 and 0.3,
respectively, how much force would you need to apply to get the
wheeled crate moving from rest?
[ , , ] N
Homework Answers
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