Question

24.If the mass of a body is get doubled and velocity becomes half then the linear momentum of the body will be
(1 Point)
same
one third
double
two fifth​

Answer 1

Correct question:-

If the mass of a body get doubled and velocity becomes half,then linear momentum of the body will be.

a.same

b.one-third

c.double

d.two-fifth

Solution:-

We know that:-

$= > p = mv \: \: \: - - - (1)$

Where:-

•p is linear momentum

•m is mass of the body

•v is velocity of the body

If mass is doubled and velocity is halved,then the equation for p1 becomes:-

$= > p1 = 2m \times \frac{v}{2}$

$= > p1 =mv - - - - (2)$

Now,by dividing eq.2 by eq.1,we get:-

$= > \frac{p1}{p} = \frac{mv}{mv}$

$= > p1 = p$

Hence,in this case the linear momentum remains same.