physics...please help!!!!!!!!!?

this may be alot but im here to help.

1. i think what your looking for is the balls force on the earth. so the earth is pulling the ball down (gravity) and (newtons 3rd law(?)) the ball also exerts a force on the earth.

2. A) draw the ground, a lawn mower and you pushing it. maybe some clouds and a sun :P draw an arrow from your hands down the handle of the lawn mower thats your 120 N of force they give you. lable the lawn mower with its weight (15Kg) show the lawn mowers motion forward and its resistance (friction) in the opposite direction towards the bottom of the lawn mower along the ground. also draw the force of the lawn mower against the earth (gravity) down, and the earth pushing against it up.

B)what is the X component? does he/she want you to find your work effort? (Mass x distance i believe)

C) once you do find X just state whether its great or smaller than the frictional force. which is the force used to over come the friction of the ground, wheels, ect. so it'll be less then 120 N

D) i THINK the normal force is the force to just get the lawnmower moving (just enough to over come friction) so that would also be slightly higher than the friction force (if im right)

3. A) the X direction is the horizontal movement he uses

B) since hes using a 30 degree angle hes also pulling up slightly to overcome friction better. thats the upward motion hes pulling with

as for equations they should be something like X =50kg x 2000N or something :/

C) the tension will be the tension in his arms because theres no where else there could be tension (except the legs of the desk and stuff but thats different)

D) just find the frictional and normal force as you did in two. (when you do find out how)

hope i was atleast alittle bit of help :)

e-mail me your picture! :P (tengelkingava182@hotmail.com)

you being so pretty and smart, you deserving a princess, a dentist.