- #1
Kajan thana
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Homework Statement
Two particles A and B of mass 4kg and 3kg respectively are connected by a light inextensible string which passes over a small smooth pulley. The particles are released from rest with taut.
When A has traveled a distance of 2m it strikes the ground and immediately comes to rest.
Question: Assuming the B does hit the pulley find the greatest height that B reaches above its initial position.
Homework Equations
Kinematic equations
The Attempt at a Solution
I found out the the time it takes for the particle A to go down by 2m using this equation s=ut+0.5at^2.
The time is 1.69 rounded to two decimal place so if Particle A go down by 1.69 second thant the Particle B will go up by 1.69 second.
Now I know that for Particle B, U=0 A=-1.4 T=1.69 so using kinematics I can find the displace which will be -1.183m so the distance it goes by 1.183m. Which is a incorrect answer.[/B]