Question

Please help! Its about Energy. Please!

1. For an object to have kinetic energy, what 2 things must it have?
Hint: KE=1/2mv^2

2. For an object to have potential energy, what must it have?
Hint: PE=mgh

Answer 1

@iGreen

Answer 2

@I_Always_Smiling

Answer 3

no one?

Answer 4

for an object having kinetic energy, there should definitely be a momentum
momentum=mv
and now kinetic energy is associated with motion, and if there is a rate of change of velocity, then definitly there must be a force



Potential energy is energy which results from position or configuration. An object may have the capacity for doing work as a result of its position. now one of the must factors for P E is the distance x (it can be hieght as in mgh).. it can be the distance upto whic a spring is compressed as in 1/2kx^2

Answer 5

velocity and momentum.for pE body should have tendancy to change its kinetic energy

Answer 6

yes velocity is a must.. at velocity zero, there is no KE

Answer 7

1) Mass and velocity
2)Mass and height

Answer 8

\[KE=\frac{ mv ^{2}}{ 2 } \] but if m or v equal 0, the kinetic energy is 0.
\[PE = mgh\] but if m or h equal zero then the potential energy is 0.

I am assuming because of the hint that this only refers to gravitational potential energy.