Hello, I have been trying to conclude this short question by allowingmyself to b

Question

Hello,

I have been trying to conclude this short question by allowingmyself to believe that the momentum of both objects is equal afterone sec. for the following question.... A 0.2 kg plastic cartand a 20 kg lead cart can both roll without friction on ahorizontal surface. Equal forces are used to push both cars forwardfor a time of 1 s, starting from rest. Which cart has thegreater momentum Am i heading in the right direction...? thanks again... Hello,

I have been trying to conclude this short question by allowingmyself to believe that the momentum of both objects is equal afterone sec. for the following question.... A 0.2 kg plastic cartand a 20 kg lead cart can both roll without friction on ahorizontal surface. Equal forces are used to push both cars forwardfor a time of 1 s, starting from rest. Which cart has thegreater momentum Am i heading in the right direction...? thanks again...

Explanation / Answer

A 0.2 kg plastic cartand a 20 kg lead cart can both roll without friction on ahorizontal surface. Equal forces are used to push both cars forwardfor a time of 1 s, starting from rest. Which cart has thegreater momentum
speed of 0.2kg cart=0+F/0.2*1=5 F m/sec
similarly
speed of 2kgcart=0+F/2*1=0.5F m/sec
momentum of 0.2kg cart=0.2*5F=F kgm/sec
momentum of 2kg cart=2*0.5F=F kgm/sec
hence both bodies have the same momentum after 1 sec

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