Answer
given,
mass of railroad = 2060 Kg
mass of sumo wrestler = 241 Kg
speed = 5.3 m/s
a) using conservation of momentum
m v = (m + M) V
241 x 5.3 = (241 + 2060)V
V = 0.556 m/s
b) Let v be the relative speed
Again using conservation of momentum
241 x 5.3 =241 x (5.3+v) + 2060 v
241 x 5.3 =241 x 5.3+241 x v + 2060 v
2301 v = 0
v = 0 m/s
c) the speed of the flatcar if he then turns and run sat 5.3 m/s relative to the flat car opposite his original direction
241 x 5.3 =241 x (v - 5.3) + 2060 v
241 x 5.3 = - 241 x 5.3+241 x v + 2060 v
2301 v = 2554.6
v = 1.11 m/s
Answer:
The change on the second particle is .
Explanation:
The period of revolution of the particle in the magnetic field is given by the formula as follows :
It is given that the magnetic field is uniform. The mass of the second particle is the same as that of a proton but thecharge of this particle is different from that of a proton.
If both particles take the same amount of time to go once around their respective circles. So,
So, the change on the second particle is .
Answer:
a) perfectly inelastic, b) collision is inelastic, c) elastic
Explanation:
In this exercise, it is asked to identify what type of shock occurs between the skater and the frisbee, for this we must define a system formed by the skater and the fribee, so that the forces during the crash have been internal and the amount of movement is preserved
Initial instant. Before the skater touches the frisbee
p₀ = M v₁ + m v₂
where M and m are the masses of the skater and frisbee, respectively
for the final moment they give us several possibilities, in all case the moment is conserved
p₀ =
case a)
Final instant. grabs the frisbee and holds it
p_{f} = (M + m) v '
p₀ = p_{f}
We can see that this shock is perfectly inelastic, it holds the fressbee
case b)
final instant.
This case is similar to the previous one, but the final speed of fresbee is zero, therefore this collision is inelastic and the kinetic energy is not conserved.
case c)
final instant. Grab the fressbee and resend it
this is an elastic Shock since the equivalent of a rebound of the fressbee, the kinetic energy is conserved.