Question

The momentum of particle is numerically equal to its KE What is the velocity
of the particle?
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Answer 1

Explanation:

the velocity of the particle i.e v = 2. Hope this helps!

Answer 2

Linear momentum is, P=mv and the kinetic energy is KE=

$1 \div 2mv {}^{2}$

$v { }^{2} - 2v = 0$

or v(v−2)=0.

So, either v=0 m/s i.e. a trivial case or v=2m/s.

So, v=2m/s is the solution.