## Ek = 1/2 me v^2

$E=hv$

Anna Lapuos 3C
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### Ek = 1/2 me v^2

Ek = 1/2 me v^2

In this formula for kinetic energy, will me always be 9.109 x 10^-31 kg?

Rain Taganas 1J
Posts: 22
Joined: Fri Sep 29, 2017 7:05 am

### Re: Ek = 1/2 me v^2

In this case me will always be 9.109 x 10^-31 kg because me is mass of electron. But the mass of other particles can be used in this place e.g. mp or mn for mass of proton or neutron respectively.

Rain Taganas 1J
Posts: 22
Joined: Fri Sep 29, 2017 7:05 am

### Re: Ek = 1/2 me v^2

In this case me will always be 9.109 x 10^-31 kg because me is mass of electron. But the mass of other particles can be used in this place e.g. mp or mn for mass of proton or neutron respectively.

Karan Singh Lecture 3
Posts: 23
Joined: Fri Sep 29, 2017 7:07 am

### Re: Ek = 1/2 me v^2

In this equation, the mass of an electron will always be 9.109 x 10^-31 kg.