A0.450 kg ball of play-doh hangs from the ceiling by a string. a 0.0850 kg wad of play-doh is thrown straight upward from below the ball and strikes the ball with a speed of 6.40 m/s and sticks to it. how high does the combined mass of play-doh rise above the original position of the ball of play-doh?

0.05269 m

Explanation:

= Mass of play doh thrown = 0.085 kg

= Hanging mass of play doh = 0.45 kg

v =Combined velocity

u = Speed of play doh = 6.4 m/s

As the momentum of the system is conserved we have

Height of the combined mass is given by

The height to which the combined mass will rise is 0.05269 m

gpe = mass x gravity constant x height or… gpe = mgh

where… mass: measured in kilograms (kg)

gravity: gravity constant on earth = 10.00 m/s2

height: measured in meters (m)

gpe: measured in joules (j) or kilojoules (kj)

how do you solve gpe?

gravitational potential energy (gpe) is the energy an object has because of its position above the. ground.

gpe = mass x gravity constant x height or… gpe = mgh.

mass:

note: to earn full marks when solving science word problems, you must show your work:

formula.

example:

given values:

mass = 0.3 kg.