Crey | A rubber cord catapult has cross-sectional area 25mm² and initial length of rubber cord is 10cm. It is stretched to 5cm. and then released to project a missile of mass 5gm. Taking Yᵣ = 5 x 10⁸ N / m² velocity of projected missile is 20 ms⁻¹, 100 ms⁻¹, 250 ms⁻¹, 200 ms⁻¹

A rubber cord catapult has cross-sectional area 25mm² and initial length of rubber cord is 10cm. It is stretched to 5cm. and then released to project a missile of mass 5gm. Taking Yᵣ = 5 x 10⁸ N / m² velocity of projected missile is

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20 ms⁻¹
100 ms⁻¹
250 ms⁻¹
200 ms⁻¹

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A rubber cord catapult has cross-sectional area 25mm² and initial length of rubber cord is 10cm. It is stretched to 5cm. and then released to project a missile of mass 5gm. Taking Yᵣ = 5 x 10⁸ N / m² velocity of projected missile is

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