Asked by Najah
An 88.5 kg fullback moving east with a speed of 5.5 m/s is tackled by a 94.0 kg opponent running west at 2.90 m/s, and the collision is perfectly inelastic.
(a) Calculate the velocity of the players just after the tackle.
m/s
(b) Calculate the decrease in kinetic energy during the collision.
J
(a) Calculate the velocity of the players just after the tackle.
m/s
(b) Calculate the decrease in kinetic energy during the collision.
J
Answers
Answered by
Elena
m₁v₁-m₂v₂=(m₁+m₂)u
u =(m₁v₁-m₂v₂)/(m₁+m₂)= …
ΔKE=m₁v₁²/2 + m₂v₂²/2 -(m₁+m₂)u²/2=..
u =(m₁v₁-m₂v₂)/(m₁+m₂)= …
ΔKE=m₁v₁²/2 + m₂v₂²/2 -(m₁+m₂)u²/2=..
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