Saturday

August 23, 2014

August 23, 2014

Posted by **solexgirl12** on Monday, October 13, 2008 at 4:30pm.

I must have done this question 15 times, and still can't get the right anwser. Can anyone help me?

- 12th grade Physics -
**Damon**, Monday, October 13, 2008 at 4:44pmsay she has mass m

there is a gravitational force down on her = m g

that force has a component normal (perpendicular) to the snow)=mg cos 24

there is an equal and opposite force up from the snow = mg cos 24

because there is no acceleration into or out of the snow.

HOWEVER, that gravitational force has another component down the slope = m g sin 24

There is no equal and opposite force to resist that because she is free to accelerate down the slope.

so

F = m a = m g sin 24

so

a = g sin 24

g is about 9.8 m/s^2

and sin 24 is about .407

- 12th grade Physics -
**solexgirl12**, Monday, October 13, 2008 at 11:24pmThank you so much; once I drew my slope levels correctly, it was no problem. Thanks again!

**Related Questions**

physics - A skier of mass 40.6 kg comes down a slope of constant angle 30◦...

Physic - A 61-kg skier, coasting down a hill that is an angle of 23 to the ...

Physics - A skier goes down a slope inclined at 25 degrees. Her mass including ...

physics - A skier of mass 54.6 kg comes down a slope of constant angle 21◦...

physics - A skier of mass 54.6 kg comes down a slope of constant angle 21◦...

physics - A skier of mass 54.6 kg comes down a slope of constant angle 21◦...

physics - A skier with a mass of 70 kg starts from rest and skis down an icy (...

Physics - A skier of mass 59.5 kg comes down a slope of constant angle 1◦ ...

physics - A 69.4-kg skier coasts up a snow-covered hill that makes an angle of ...

physics - An extreme skier, starting from rest, coasts down a mountain slope ...