Question

A rubber cord catapult has cross-sectional area 25 mm²
and initial length of rubber cord is 10 cm. It is stretched to 5
cm and then released to project a missile of mass 5 gm.
Taking Yᵣᵤ₆₆ₑᵣ = 5 × 10⁸ N/m². Velocity of projected missile
is
(a) 20 ms⁻¹ (b) 100 ms⁻¹
(c) 250 ms⁻¹ (d) 200 ms⁻¹

Answer 1

Answer:

200 ms⁻¹

Explanation:

5

cm and then released to project a missile of mass 5 gm.

Taking Yᵣᵤ₆₆ₑᵣ = 5 × 10⁸ N/m². Velocity of projected missile.