Batman (mass = 105 kg) jumps straight down from a bridge into a boat (mass = 530 kg) in which a criminal is fleeing. The velocity of the boat is initially +15 m/s. What is the velocity of the boat after Batman lands in it?(adsbygoogle = window.adsbygoogle || []).push({});

.5mv squared + mghf = .5mVi squared + Mghi

.5 x 635 x Vf squared = .5 x 530 x 15 squared

= 13.7m/s

**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: Batman Kinetic energy problem

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