Question

if mass of a body becomes half then what will be its K.E?​

Answer 1

Answer:

Answer is below

Explanation:

New KE = 1/2. (m/2). (2v)^2 = mv^2 = Double of Original KE KE will get doubled.

Answer 2

MATHEMATICALLY:

as we know

K.E =1/2mv²

=1/2(2m)v²

TAKING 2 COMMON

=2(1/2mv²)

AS K.E IS EQUAL TO 1/2 mv²

K.E =2 K.E

However , K. E is also directly proportional to mass so when mass doubles K. E also doubles

but you can also find it mathematically as in above

HOPE IT HELPS