What is the significance of h in relation to finding the distance AB?

[princejan7]

Homework Statement

http://postimg.org/image/bh4tzmd4l/

Can someone explain to me what "acceleration of the truck relative to the crate means"?

What should I do first in trying to solve this?

 

[Andrew Mason]

Homework Statement

http://postimg.org/image/bh4tzmd4l/

Can someone explain to me what "acceleration of the truck relative to the crate means"?

What should I do first in trying to solve this?

It means the difference between the acceleration of the truck and the acceleration of the crate. From that, I think you can figure out what you have to do in order to start.

AM

 

[princejan7]

It means the difference between the acceleration of the truck and the acceleration of the crate. From that, I think you can figure out what you have to do in order to start.

AM

thanks, I have another question

http://postimg.org/image/81muw26tl/

I don't understand what the value h is in this question and how its relevant to finding the distance AB

 

[haruspex]

thanks, I have another question

http://postimg.org/image/81muw26tl/

I don't understand what the value h is in this question and how its relevant to finding the distance AB

You are to take h as the height of the bottom end of the ramp above the surface of the slope immediately below it. The slope continues down at angle beta from there.