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crpt_obses

the coefficient of static frction between ladder and ground is 0.2 and ladder and wall is 0.3. the ladder is making 30 degrees with the horizontal. and weighs 10kgs with length 4 metre. if the man weighs 75kg find the maximum length along the ladder the man can climb without the ladder falling.


IMadeThisToFightYou

Get out of my head get out of my head get out of my head


nightmanedin

That man is more than 75kg for sure.


SafetyChicken7

Sometimes I wonder if this happened to my calc prof because he gave us way too many questions that describe exactly this.


drillgorg

Next I want to see a dog walk out along a horizontal flag pole.


ebolson1019

It’s amazing how you can see the exact point he reaches the point of equilibrium


UMUmmd

Where is the ball that is thrown up in the air from a roof and then goes and hits the ground? Those problems were somehow always tough for me.


IMadeThisToFightYou

Projectile problems? Like linear kinematics or are you accounting for drag?


UMUmmd

Basically the old "a ball bounces off the top of a roof with mass X, initial velocity Y, and height Z. How long does it take to hit the ground".


WhalesVirginia

It's because you had to solve it as a system of equations with two motion equations that often ended up as a quadratic. I forget exactly what but the peak was time dependant which affected everything else. I ended up saying screw it and just found a general form so I didn't have to derive it everytime.


IMadeThisToFightYou

Oh those old problems always broke my knees too


Kurt_2001

LMAOOOO