Ababy carriage is sitting at the top of a hill that is 21m high. the carriage with the baby weighs 25kg. calculate the speed the carriage the carriage would have if it rolls down the hill

Velocity = 20.3 [m/s]

Explanation:

This is a typical problem of energy conservation, where potential energy is converted to kinetic energy. We must first find the potential energy. In this way, we will choose as a reference point or point where the potential energy is zero when the carrriage rolls down 21 [m] from the top of the hill.

Now this will be the same energy transformed into kinetic energy, therefore:

wavelength divides in half and speed stays the same.