Question

answer for the given question is opt4
please provide suitable explanation

Answer 1

Answer:

Explanation:

u are right correct answer is 4 as we know that

KE=(1/4)kA^2

same as for PE

TE=KE+PE=(1/2)KA^2

so here KE =15

SO at mean pos PE=0 and KE is max

TE=30J

But at extreme pos KE=0 and PE is max

TE=PE