How Far Will the Dart Travel When Fired from a Moving Incline?

  • Thread starter Thread starter Nemi
  • Start date Start date
  • Tags Tags
    Projectile
AI Thread Summary
To solve the problem of how far the dart will travel when fired from a moving incline, it's essential to calculate the initial velocity components of the dart based on the child's speed and the incline angle. The child's horizontal speed is determined by multiplying their speed down the incline by the cosine of the incline angle, while the vertical speed is found using the sine function. The dart's initial velocity combines these components, allowing for the calculation of the horizontal distance it will travel after being fired from a height of 1.5 m. Understanding projectile motion principles, including the effects of gravity on the vertical component, is crucial for determining the total distance traveled. This problem requires careful consideration of both the incline's angle and the initial conditions of the dart's launch.
Nemi
Messages
3
Reaction score
0
:cry: So many part to it its making me dizzy!

A dart gun is fired while being held horizontally at a height of 0.583 above ground level, and at rest relative to the ground. The dart from the gun travels a horizontal distance of 3.13 m. A child holds the same gun in a horizontal position while sliding down a 59.7 degree incline at a constant seed of 1.27m/s
What horizontal distance x will the dart travel if the child fires the gun forward when it is 1.5 m above ground?

:frown: Please help me understand what I need to do to solve this problem.
 
Physics news on Phys.org
Add the childs x and y (horizontal and vertical) components of speed as intial velocity of the dart.
 
I multiplied the values first without the error limit. Got 19.38. rounded it off to 2 significant figures since the given data has 2 significant figures. So = 19. For error I used the above formula. It comes out about 1.48. Now my question is. Should I write the answer as 19±1.5 (rounding 1.48 to 2 significant figures) OR should I write it as 19±1. So in short, should the error have same number of significant figures as the mean value or should it have the same number of decimal places as...
Thread 'A cylinder connected to a hanging mass'
Let's declare that for the cylinder, mass = M = 10 kg Radius = R = 4 m For the wall and the floor, Friction coeff = ##\mu## = 0.5 For the hanging mass, mass = m = 11 kg First, we divide the force according to their respective plane (x and y thing, correct me if I'm wrong) and according to which, cylinder or the hanging mass, they're working on. Force on the hanging mass $$mg - T = ma$$ Force(Cylinder) on y $$N_f + f_w - Mg = 0$$ Force(Cylinder) on x $$T + f_f - N_w = Ma$$ There's also...

Similar threads

Back
Top