Calculating Normal Force on a 3-Tiered Birthday Cake

[big daddy]

farmhand attaches a 25 Kg bale of hay to one end of a rope passing over a frictionals pulley connected to a beam in the hay barn.then another farmhand pulls down on the opposite end of the rope with force of 277N. ignoring the mass of the rope, find the magntuide and dirction, gravitational force is 245N.


and this is the other one

3- tiered bithday cake rests on a table. from bottom to top the cake tiers weigh 16, 9, 5 respectively
find the magnitude and direction of normal force acting on 2nd tier?

i need ur help guys
i want someone to explain it to me like step be step
thanksss

 

[Chi Meson]

i need ur help guys
i want someone to explain it to me like step be step
thanksss

We are goning to wait until you tell us what you have tried, or at least what you think the answer might be.

By the way, I am assuming that the first problem is asking for the magnitude and direction of the acceleration of the hay bale. You'll need Newton's 2nd Law (formula) for that.

 

[big daddy]

the formula is f= ma
277=(245)a
a= 277/245
a=1.1 N
i think it's not right
i'm lost!

 

[Chi Meson]

i think it's not right

You're right about that. The test is tomorrow and you still don't know the difference between mass and weight? How many classes did you miss?

What is the mass of the Hay bale? What is its weight

 

[big daddy]

mass is 25
weight is 245..

 

[emma3001]

well to find the normal force of the guy pulling down, Fn=mg so m=28.3 kg. then u can do the rest

 

[big daddy]

i'm still lost!