Question

Please help answer question 10

Answer 1

Hi mate here is the answer::-✍️✍️✍️

Let p1= mv

p2= mv+20/100 mv

6mv/5

6mv/5

P2=mv'

mv'=6mv/5

mv'=6mv/5v'=6v/5

Substitute value of v'k2=1/2 m(6/5v)^2K2=36/50 mv^2Multiple and divide by 4K2=144/100*1/2mv^2Putting value of k1=1/2 mv^2K2=144/100 k1K2=k1+44/100 k1

So K1 increased by 44%

Hope it helps you ❣️☑️☑️