Question

3. If Kinetic energy increases to 16 times then the velocity should be increased to
a) 4 times
b) 2 times
c) 16 times
d) 3 times​

Answer 1

Answer:

i think it will be four times

KE = 1/2mv2

we see kinetic energy is increased 16 times so KE becomes

16 *(1/2mv2)   =   16/2mv2  =  8mv2

now putting value of kinetic energy

8mv2 = 1/2mv2

16mv2 = mv2

m and m got canceled we get

16 v2 = v2

square root both sides

4v = v

so increased is 4 times

Explanation:

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