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Jonski
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Homework Statement
At the instant shown, the driver of the truck has just pressed the accelerator pedal down and the truck has suddenly acquired a tangential acceleration of 2.2m/s^2.
Coefficient of static friction between crate and tray = 0.4
Coefficient of kinetic friction between crate and tray = 0.3
Find the acceleration of the crate?
Homework Equations
a(normal) = v^2/r
F=ma
F = mv^2/r
The Attempt at a Solution
a(tangential) = 2.2m/s^2
a(normal) = 6.1^2/112 =0.33
a = 2.225m/s^2
F = 270 *2.225 = 600.8N
mv^2/r = -N + m.g.cos(15)
89.7=-N+2555.84
N=2466.1N
μN = 986.4N
986.4 > 600.8
Box doesn't move
However this is not the correct answer as I know it moves.
Can someone please help me found out where I am going wrong.
Thanks
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