I'm doing a Assignment is to conststruce a captapult that will launch a marshmallow(Large size) at target on the floor at the other end of the classroom.(adsbygoogle = window.adsbygoogle || []).push({});

I designed catapult. the rules saing the energy;; to launch the marshmallow cannot come directly from the motion of a human being.so i used elastic band .

but, they saing to calculate the distance.

so, i use an enegy approach. so I determine the angle at which the mashmallow leaves the catapult.then I assume then energy loss of the arm is gained by the marshmallow.but I ued elastic band, but, i dont know how to measure the load distance to find the energy stored in the elaastic band.how to i take into this measure ments...coz, I dont know the formula of the elasticband energy stored.

just i used this formula to find the velocity.

Mgh = 1/2*M*V^2

but I dont consider the elastice band energy

please any one could me help to solve this probelm

I need the full foumula how to fine the calculation...

pls sent me to desitamil@gmail.com

Thanks for look through my post.

**Physics Forums | Science Articles, Homework Help, Discussion**

Dismiss Notice

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: How do I Calculat on distance in Catapult project

**Physics Forums | Science Articles, Homework Help, Discussion**