Three blocks of masses m_1=10kg, m_2=20kg and m_3=30kg are connected by strings on smooth horizontal surface and pulled by a force of 60 n. find the acceleration of the system and tensions in the string.
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for calculating force use the formula
a= F(net)/total mass
so a= 60/10+20+30
a= 60/60 = 1 m/s
now, if force is applied on 1 body then
tension between 2 and 3 body is
T1=mass x acceleration
= 30x1 = 30 N
and the tension between 1 and 2 body is
T = (30+20)x1 = 50N
a= F(net)/total mass
so a= 60/10+20+30
a= 60/60 = 1 m/s
now, if force is applied on 1 body then
tension between 2 and 3 body is
T1=mass x acceleration
= 30x1 = 30 N
and the tension between 1 and 2 body is
T = (30+20)x1 = 50N
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