First slide

NA

Question

The kinetic energy of a body of mass 3 kg and momentum 2 Ns is

Easy

A

1 J
B

$\frac{2}{3} J$
C

$\frac{3}{2} J$
D

4 J

Solution

$E = \frac{P^{2}}{2 m} = \frac{4}{2 \times 3} = \frac{2}{3} J$

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