Having a hard time figuring out where to start and would appreciate the work sho

Question

Having a hard time figuring out where to start and would appreciate the work shown as to how to get an an answer for A and B. 19:28 11% Verizon session masteringphysics.com Problem 8.3 I MasteringPhysics Problem 8.3 I On an air track, a 402.0 g glider moving to the right at 2.10 m/s collides elastically with a 503.0 g glider moving in the opposite direction at 3.10 m/s. Part A Find the velocity of first glider after the collision. 2.1 m/s to the left. v Give Up Submit incorrect; Try Again; 3 attempts remaining Part B Find the velocity of second glider after the collision m/s to the right. v R Submit Give Up

Explanation / Answer

Given that

mass m1=0.402 kg

mass m2=0.503 kg

speed u1=2.1 m/s

speed u2=-3.1 m/s

basing on the concept of collision

now we find the speed of first glider after collision

speed v1=(m1-m2)u1/(m1+m2)+2*m2u2/(m1+m2)

=(0.402-0.503)*2.1/(0.402+0.503)-2*0.503*3.1(0.402+0.503)

=-0.2345--3.45

=-3.7 m/s

now we find the speed of second glider after collision

speed V2=2*0.402*2.1/(0.905)-(0.503-0.402)*3.1/(0.905)

=1.87-0.35

=1.52 m/s

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