Question

the mass of a body is doubled And it's velocity becomes half then the linear momentum A) remain same B) become doubleC) become half D) become four times​

Answer 1

Given:

The mass of a body is doubled and it's velocity becomes half.

To find:

New linear momentum ?

Calculation:

• Initial mass = m
• Initial velocity = v

Now, initial MOMENTUM

P1 = m × u

=> P1 = mv

• Now, new mass = 2m
• New velocity = v/2.

Now, new MOMENTUM:

P2 = 2m × v/2

=> P2 = mv

$\star$ So, linear momentum remains same.