Two blocks of equal mass `m` are connected by an unstretched spring and the system is kept at rest on a frictionless horizontal surface. A constant force `F` is applied on the first block pulling away from the other as shown in Fig. If the extension of the spring is `x_(0)` at time `t`, then the displacement of the first block at this instant isA. `1/2((Ft^(2))/(2m)+x_(0))`B. `-1/2((Ft^(2))/(2m)+x_(0))`C. `1/2((Ft^(2))/(2m)-x_(0))`D. `(Ft^(2))/(2m)+x_(0)`

Two blocks of equal mass `m` are connected by an unstretched spring an

1.	Two blocks of equal mass `m` are connected by an unstretched spring and the system is kept at rest on a frictionless horizontal surface. A constant force `F` is applied on the first block pulling away from the other as shown in Fig. If the extension of the spring is `x_(0)` at time `t`, then the displacement of the first block at this instant isA. `1/2((Ft^(2))/(2m)+x_(0))`B. `-1/2((Ft^(2))/(2m)+x_(0))`C. `1/2((Ft^(2))/(2m)-x_(0))`D. `(Ft^(2))/(2m)+x_(0)`
Answer» Correct Answer - A a.

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