- A horizontal circular platform of radius 0.5 m and mass 0.45 kg is free to...

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- A horizontal circular platform of radius 0.5 m and mass 0.45 kg is free to rotate about its axis. Two massless spring toy-guns, each carrying a steel ball of mass 0.05 kg are attached to the platform at a distance 0.25 m from the centre on its either sides along its diameter (see fig- ure). Each gun simultane- ously fires the balls horizon- tally and perpendicular to the diameter in opposite directions. After leaving the platform, the balls have horizontal speed of 9 ms¹ with respect to the ground. The rotational speed of the platform -1 in rad s after the balls leave the platform is Fig. 3.421 - A horizontal circular platform of radius 0.5 m and mass 0.45 kg is free to rotate about its axis. Two massless spring toy-guns, each carrying a steel ball of mass 0.05 kg are attached to the platform at a distance 0.25 m from the centre on its either sides along its diameter (see fig- ure). Each gun simultane- ously fires the balls horizon- tally and perpendicular to the diameter in opposite directions. After leaving the platform, the balls have horizontal speed of 9 ms¹ with respect to the ground. The rotational speed of the platform -1 in rad s after the balls leave the platform is Fig. 3.421

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