Question

Answer this ........​

Answer 1

Answer:

work done when block reach on ground

$\\ mg \times (3h) \\ 3mgh$

work done when block reaches at to of the circle

$\\ 3mgh - mgh \\ 2mgh$

So force is 2mg

so NORMAL FORCE = 2mg

$\\ \\ \\ \infty \infty \infty \infty \infty \infty \infty \infty \infty \infty \infty \infty \infty \infty \infty \infty \infty \infty \infty \infty \infty \infty \infty \infty \infty \infty \infty \infty \infty \infty$

HOPE IT HELPS

Answer 2

according to new new 2nd law

and Sunny's 1st law

the answer is 2mg

hope it is help full