Greg or Sara or any of your other many aliases -- I've removed the other 15 or so physics questions because we don't accept "homework dumping."
You're welcome to repost some questions with your own answers. Someone then, may check them.
What is the minimum work needed to push a 900 kg car 460 m up along a 17.5° incline?
(a) Ignore friction.
(b) Assume the effective coefficient of friction retarding the car is 0.30?
4 answers
The minimum work required in the potential energy increase at the top of the ramp. you need the height of the ramp for that. That would be 460 sin 17.5
With friction, you need to add the work done against friction, which is (friction force) x 460 m. Use the coefficient of friction and the usual formula (which you should know or learn) for the friction force
With friction, you need to add the work done against friction, which is (friction force) x 460 m. Use the coefficient of friction and the usual formula (which you should know or learn) for the friction force
wow, my apology. im sorry.
i was expecting to get explainations and get the right equations. im very interesting in physics and i found this great website. you all are very helpful!
so i thought i could get as much help as i could.
AND you said that i can repost some questions with my answers? well i don't know how to find the answer and i thought you would show me how to do it and give me the right equations for me to use.
still want me to repost????
i was expecting to get explainations and get the right equations. im very interesting in physics and i found this great website. you all are very helpful!
so i thought i could get as much help as i could.
AND you said that i can repost some questions with my answers? well i don't know how to find the answer and i thought you would show me how to do it and give me the right equations for me to use.
still want me to repost????
lol this is kinda hard. i go to glenbard north which has one of the best physics programs for high school students and we never covered this.
1 answer