How to do this a young vandal wishes to hit a truck traveling at a constant speed of 20m/s with a water balloon. if the vandal is in a tree, 40 m from the top of the truck, how far should the truck be from the tree when she releases the balloon so that it hits the truck when it is at a position directly beneath her?

6.89 m

Explanation:

t = Time taken

u = Initial velocity

v = Final velocity

s = Displacement

a = Acceleration

The water balloon will take 2.9 seconds to hit the tree

As, the truck is moving at a constant speed of 20 m/s it does not have acceleration

The boy has to release the balloon when the truck is 6.89 m away

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.