2.8 KiB
2.8 KiB
Exercise: Add the function update_position
to the Particle
class¶
- Make the function
update_position
into a method of the classParticle
- Where do the position
position
of the particle belong? Modify the class constructor if necessary - Once it is done, create a particle with mass 2.1 with velocity 0.8 at position 8.2 . Update the position with dt=0.1 and print out the new location.
In [1]:
class Particle:
def __init__(self, mass, velocity, position):
self.mass = mass
self.velocity = velocity
self.position = position
def momentum(self):
return self.mass * self.velocity
def update_position(self, dt):
self.position = self.position + self.velocity * dt
particle = Particle(mass=2.1, velocity=0.8, position=8.2)
print(particle.momentum())
In [2]:
particle.update_position(dt=0.1)
print(particle.position)
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