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dededese2403
28.11.2019 •
Physics
A77.0-kg ice hockey goalie, originally at rest, catches a 0.125-kg hockey puck slapped at him at a velocity of 37.5m/s. suppose the goalie and the ice puck have an elastic collision and the puck is reflected back in the direction from which it came.what would the final velocities of the goalie and the puck be in this case? assume that the collision is completely elastic.
a. v goalie = m / s
b. v puck = m / s
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Ответ:
Answer
given,
Mass of ice hockey goalie = (M) = 77 Kg
mass of pluck = (m) = 0.125 Kg
velocity of pluck (u₁)= 37.5 m/s
u₂ = 0
Let v₁ and v₂ are the velocity of m₁ and m₂
final velocities are
v_1 is velocity of goalie
v_2 is velocity of puck
now,
a) for goalie
b) for pluck
Ответ: