A small ball of mass m is released from rest from point A inside a smooth semicircular groove of radius 5 m in a rectangular wedge of mass m as shown in the figure. The speed of wedge is v (ms^–1) when ball reaches point B. Find the value of v.
[Take g = 9.8 m/s²]


द्रव्यमान m की एक छोटी गेंद को चित्र में दर्शाये अनुसार द्रव्यमान m के एक आयताकार नत तल में 5 m त्रिज्या के एक चिकने अर्द्धवृत्तीय खाँचे के अंदर बिन्दु A से विरामावस्था से छोड़ा जाता है। जब गेंद बिन्दु B पर पहुंचती है, तब नत तल की चाल v (ms^–1) है। v का मान ज्ञात कीजिए।
[g = 9.8 m/s² लीजिए]

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