A boy and a block, both of same mass m kg, are initially at the same horizontal level and attached to a frictionless pulley through a light inextensible string that moves over the frictionless pulley as shown in figure. The boy starts moving upward with an acceleration of 2.5 m/s2 relative to the rope. If the block has to travel a total distance of 10 m before reaching at the level of pulley, the time taken by the block in doing so is equal to

A boy and a block, both of same mass m kg, are initially at the same

1.	A boy and a block, both of same mass m kg, are initially at the same horizontal level and attached to a frictionless pulley through a light inextensible string that moves over the frictionless pulley as shown in figure. The boy starts moving upward with an acceleration of 2.5 m/s2 relative to the rope. If the block has to travel a total distance of 10 m before reaching at the level of pulley, the time taken by the block in doing so is equal to
Answer» A boy and a block, both of same mass $m kg$ , are initially at the same horizontal level and attached to a frictionless pulley through a light inextensible string that moves over the frictionless pulley as shown in figure. The boy starts moving upward with an acceleration of $2.5 {m/s}^{2}$ relative to the rope. If the block has to travel a total distance of $10 m$ before reaching at the level of pulley, the time taken by the block in doing so is equal to

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