A boy’s catapult is made of rubber cord which is 42 cm long, with 6

1.	A boy’s catapult is made of rubber cord which is 42 cm long, with 6 mm diameter of cross – section and of negligible mass. The boy keeps a stone weighing 0.02 kg on it and stretches the cord by 20 cm by applying a constant force. When released, the stone flies off with a velocity of 20 ms⁻¹. Neglect the change in the area of cross section of the cord while stretched. The Young’s modulus of rubber is closest to: (A) 10³ Nm⁻²(B) 10⁶ Nm⁻²(C) 10⁸ Nm⁻²(D) 10⁴ Nm⁻²
Answer» ANSWER: B OPTIONS is RIGHT Answer please MAKE me Brainlist Have a NICE day..

A boy’s catapult is made of rubber cord which is 42 cm long, with 6 mm diameter of cross – section and of negligible mass. The boy keeps a stone weighing 0.02 kg on it and stretches the cord by 20 cm by applying a constant force. When released, the stone flies off with a velocity of 20 ms⁻¹. Neglect the change in the area of cross section of the cord while stretched. The Young’s modulus of rubber is closest to: (A) 10³ Nm⁻²(B) 10⁶ Nm⁻²(C) 10⁸ Nm⁻²(D) 10⁴ Nm⁻²

Answer»

ANSWER:

B OPTIONS is RIGHT Answer

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