How to find the angle between r and the x axis?

  • Thread starter Thread starter deaninator
  • Start date Start date
  • Tags Tags
    Angle Axis
AI Thread Summary
To find the angle between vector r and the x-axis, it's essential to correctly calculate the magnitude of r. Initial calculations led to an incorrect value of 8.5, which was identified as a miscalculation. After re-evaluating the expression, the correct magnitude of r was found to be 4.6. The angle was then recalculated to be approximately 86.64 degrees, which was confirmed as correct. Accurate computation of vector components is crucial for determining angles in vector analysis.
Physics news on Phys.org
You miscalculated r.
 
Recheck how you computed the expression for r. The expression with the square root looks ok, but I find that it evaluates to 4.6, not 8.5.
 
fzero said:
Recheck how you computed the expression for r. The expression with the square root looks ok, but I find that it evaluates to 4.6, not 8.5.

Ok so i got 86.64 is that correct?
 
Looks right.
 
Thread 'Variable mass system : water sprayed into a moving container'

Thread 'Variable mass system : water sprayed into a moving container'

Starting with the mass considerations #m(t)# is mass of water #M_{c}# mass of container and #M(t)# mass of total system $$M(t) = M_{C} + m(t)$$ $$\Rightarrow \frac{dM(t)}{dt} = \frac{dm(t)}{dt}$$ $$P_i = Mv + u \, dm$$ $$P_f = (M + dm)(v + dv)$$ $$\Delta P = M \, dv + (v - u) \, dm$$ $$F = \frac{dP}{dt} = M \frac{dv}{dt} + (v - u) \frac{dm}{dt}$$ $$F = u \frac{dm}{dt} = \rho A u^2$$ from conservation of momentum , the cannon recoils with the same force which it applies. $$\quad \frac{dm}{dt}...
View full post »

Similar threads

Angle between normal force and radial line for cylindrical coordinates
Replies
21
Views
2K
Torque on a Circular Current Loop under a Misaligned Magnetic Field
Replies
1
Views
996
How to find the angle between the resultant and the X axis?
Replies
19
Views
17K
Simple pendulum with moving support
Replies
4
Views
924
Velocity along the cylinder axis
Replies
18
Views
2K
Find the angle between this vector and the coordinate axes
Replies
16
Views
4K
The angle and distance of a projection - Grade 11 physics
Replies
4
Views
2K
How to find angle Electric field makes to x-axis?
Replies
7
Views
8K
How Does Coriolis Force Influence Particle Motion in Rotating Systems?
Replies
3
Views
1K
How Do You Derive the Constraint Equation for a Disc Rolling Along a Parabola?
Replies
2
Views
2K

Hot Threads

Recent Insights

Back
Top