a box on a smooth inclined plane with an angle of 20 degrees to the horrizontal. If the inclined plane is 5 m long, how long does it take for the mass to reach the bottom of the inclined plane after the mass is released?(adsbygoogle = window.adsbygoogle || []).push({});

I did sin 20 degrees x 5.0 m = 1.71 m

how do i get the mass from this measurement?

1.71m can't equal mg=w

w=9.8m/s^2*mass

If I could find find (a)accel., then I could use one of the

kinematic equations.

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Inclined plane and a box

**Physics Forums | Science Articles, Homework Help, Discussion**