Question

4. If the mass of a body is doubled and its velocity becomes half, then the linear momentum of the body will:
(a) remain same
(b) become double
(c) become half
d) become four times.​

Answer 1

Answer:

become half

Explanation:

because the velocity changes to half the linear momentum becomes unbiased and hence it is basically a net charge becomes zero

Answer 2

Answer:

(b) become double

Explanation:

kinetic energy of a body of given mass , us directly proportiinal to its square of its velocity when momentum is doubled , mass remaing constant this means velicity is doubled. . hence kinetic energy become 22=4 times ie-say from 100 units to 400 units

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