Từ độ cao h =2,1m, người ta ném một hòn đá lên cao với vận tốc ban đầu vo nghiêng một góc α = 45o
so với phương ngang. Hòn đá đạt được tầm bay
xa l = 42m.
Tính:
a. Vận tốc ban đầu của hòn đá,
b. Thời gian hòn đá chuyển động trong không gian,
c. Độ cao cực đại mà hòn đá đạt được.

a lot of it means it can be "burned" for energy and sold at one price. if it is scarce, the price will go up

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.

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hope this !