if anyone can please help me with these at least tell me how to start them that would be great...(adsbygoogle = window.adsbygoogle || []).push({});

CJ5 4.P.013.] Only two forces act on an object (mass = 3.10 kg), as in the drawing. (F = 50.0 N.)the other force is 40N Find the magnitude and direction (relative to the x axis) of the acceleration of the object.

m/s2

° (counterclockwise from the +x axis) (the angle inbetween the two forces is 45.)

to find the angle relitive to the xaxis I used 40sin45.. then to find the magnitude, I used the pythagorean therom... c^2=50^2+40^2 yet my answers are wrong can anyone tell me where I went wrong???

5. [CJ5 4.P.021.] On earth, two parts of a space probe weigh 11000 N and 4900 N. These parts are separated by a center-to-center distance of 24 m and may be treated as uniform spherical objects. Find the magnitude of the gravitational force that each part exerts on the other out in space, far from any other objects.

N I used the equation: F=G(M1M2/r^2) I used the universial gravity constant.. 6.67259E-11(11000*4900/24^2) and still got the wrong answer.. is there more to the equation than what I am seeing?

6. [CJ5 4.P.023.] Planet X has an equatorial radius of 4.80 107 m and a mass of 6.47 1026 kg.

(a) Compute the acceleration of gravity at the equator of Planet X.

m/s2

(b) What it the ratio of a person's weight on Planet X to that on Earth?

(weight on Planet X / weight on earth)

I HAVE NO IDEA ABOUT THIS ONE.. ANY HELP WOULD BE APPRECIATED.. '

THANKS ALOT.. NICOLE

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

Dismiss Notice

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!

# Find the angle relitive to the x axis

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