Question

ratio of Kinetic energy to potential energy is
a. v2/2gh
b. gh/2v2
c. mgh
d. mv2/2


here v2 means v square​

Answer 1

Answer:

a) v^2/2gh

Explanation:

Potential Energy = mgh

Kinetic Energy = (1/2)mv^2

Kinetic Energy/ Potential Energy

((1/2)mv^2)/mgh

= v^2/2gh

Answer 2

Answer:

Kinetic energy

The energy posses by an object due to it's motion is called kinetic energy.

For example :-

• A bullet from a gun
• Riding on a cycle,etc

Formula:-

==> Kinetic Energy (KE) = 1/2mv^2

where,

m = mass

v = velocity

Potential Energy

Energy possesd by an object virtue of its positions or shape or configuration is known as potential energy.

For example :-

• Water stored in dam.
• A stone lying on the top of a hill, etc

Formula:-

==>> Potential Energy (PE) = mgh

where,

m = mass

g = acceleration due to gravity

h = height

Now,

Ratio of Kinetic energy to potential energy :-

=>

=> $\frac{ \frac{1}{2}m {v}^{2} }{mgh} \\ = > \frac{ \frac{m {v}^{2} }{2} }{mgh} \\ = > \frac{m {v}^{2} }{2} \times \frac{1}{mgh} \\ = > \frac{ {v}^{2} }{2gh}$

So, Ratio is v^2:2gh