So I need someone out there who's good at physics and can help me... I've been struggling with this problem all week, and it's due tomorrow morning. :P I don't even know where to start.

 

The problem is there's a stuntman on the front of a truck. He isn't standing on anything but he can "stick" to the front of the truck as long as it continues to accelerate. It asks me what the minimum acceleration the truck needs to have in order for the stuntman to stay on the truck. All it gives me is the coefficient of friction (doesn't even say whether it's static or kinetic). So any help? :D

This will sound harsh, but you deserve to fail. You don't deserve any marks you get should someone here help you. Besides, I don't think it's acceptable on these forums to ask other people to do your homework for you.

Theres no shame in asking for help, as long as in the end you understand the outcome, asking for help is one way of learning too.

Dude... I didn't even SAY what the coefficient of friction is. O.O All I want is a little help with something I completely don't understand.

Is that homework assigned by the teacher or did you have to make your own?

I'd say 0km/h after hit as he'd be on the windscreen.

Is that homework assigned by the teacher or did you have to make your own?

I'd say 0km/h after hit as he'd be on the windscreen.

 

Yes it's assigned by the teacher. The only formula that I can come up with is F = UN (lol that says fun.. F is for force, U for the coefficient of friction, and N for the normal force). It doesn't give me his weight or mass though, and seeing as there's no vertical movement, his weight and the normal force should cancel out anyways right? Is there even a normal force? He isn't standing on anything..

 

EDIT: Also F=ma (force = mass times acceleration) But again, even if I figure out the force on him, I don't know the mass, so I can't figure out acceleration.

Homework help is not allowed on the forums - I'm sure you'll be able to find resources somewhere on the internet.