Question

In the Hunger Games movie, Katniss Everdeen fires a 5,0 gram arrow straight up into the air. The

spring constant of the bow is 100 N/m and she pulls the bow back a distance of 8,0 cm. Th
maximum height the arrow reaches is...

Answer 1

W=1/2kx²

mgh=1/2kx²

5 x 10⁻³ x 10 x h = 1/2 x 100 x (8x10⁻²)²

h = 6.4 m