Question

see the question above​

Answer 1

Answer:

the answer is c number

Explanation:

hope it help you

Answer 2

Answer:

2/3mgR, Option B

Explanation:

Mass = m, height = 2R

At height the acceleration due to gravity decreases , hence the value of acceleration due to gravity becomes g' = g/1+h/R = gR/h+R

Now , value of potential energy 'U' = mgh

• mgRh /R+h

• but , h = 2R

∴ mg2R²/3R = 2mgR/3 Answer