Aball is throw horizontally from the top of a building 29.3 m high. the ball strikes the ground at a point 99.4 m from the base of the building. what is the time he ball was in motion

We can solve this via the kinematic equation:

Where the vertical velocity is zero and so:

Since the height of the building is 29.3 meters then:

The ball was in motion for approximately 2.45 seconds

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.