1.

Two blocks A and B of masses 2kg and 3kg are connected by a light string as shown in the figure and placed on a horizontal surface. mu between all surfaces is 0.1 and g=10 ms^(-2). The acceleration of the system is, when the force applied F = 45 N

Answer»

SOLUTION :`F-mu(m_(1)+m_(2))G=(m_(1)+m_(2))`
`45-0.1(5)10=5a`
`45-5=5a`
`a=8 ms^(-2)`


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