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StrugglingMama

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I have an inadequacy in my formal education as i only went to Year 8 in Australia. I am struggling to help my daughter at the moment.

My 16 year old daughter is stumped on some Physics questions. She is studying to sit American SATS instead of our ATAR exam as she is High IQ and almost 2 years advanced in her education.

Do you have time to look at 3 Physics Questions and see if you can help me help my child gain the Formula required to work out said questions?

I am in the process of arranging a Professional to tutor her in person on Physics, as this is beyond her Mathematics tutors skill sets. I am tutoring her as much as i can. English is my strong suit but Maths & beyond are not. Most of my Scientific knowledge comes from my personal research.

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(an email from my daughter)

1. A ship is launched into the water down a ramp making an angle of 8° with the horizontal. The coefficient of kinetic friction is µk = 0.06. What is the acceleration of the ship down the ramp?

(How on Earth do I do this because a = F/m and there's no m?)

2. A 400. N crate has been delivered to Tim's driveway. In order to get it started moving toward his door, he has to push it with a horizontal force of 250. N, but as soon as it is moving, he can keep it moving with a constant speed by pushing with a 120. N force. What are the coefficients of static and kinetic friction of the crate and the driveway?

(Okay, we have not been taught any of this in class.)

3. You are trying to walk up a steep hill. The coefficient of friction is 0.62. What is the maximum inclination of the hill that you can walk up and not wall down.

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Most of this is over my head unfortunately. Does anyone have the time or inclination to assist my child in the Formulas required to work these questions out? Her teacher is inadequate himself. We need assistance to bridge the gap until Physics Tutes can be worked into my daughters already over full schedule.

Many Thanks

StrugglingMama