Fill in the blanks and answer this 3 questions correctly (Show your work) and earn 10pts and the brainlist answer!
2 answers:
Answer:
15.KINETIC ENERGY,1890J
16.potential energy,315J
17.kinetic energy 1792KJ
Explanation:
kinetic energy is the energy of a body possesses when in motion or in movement.
Potential energy is the energy a body possesses due to its position. it is also called the energy of position
15. the volleyball has been served and is therefore in motion. it has kinetic energy
K.E=m.v²
m=2.1kg
v=30m/s
K.E=2.1 × 30²
=2.1×900=1890J
16. The carriage is sitting at a position on the hills. It has potential energy
P.E=mgh
m=1.5kg
g=10m/s²
h=21m
P.E=1.5×10×21
=315J
17. The car is trravelling. it is in motion. it has Kinetic energy
K.E=mv²
m=1120kg
v=40
K.E=1120×40²
1120×1600=1792000J
=1792KJ
The FASTER an object moves, the MORE KINETIC ENERGY it has.
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