Question

Whoever will answer these questions, will be marked brainliest​

Answer 1

Answer:

Q1 (i) 75 J

(ii) 39???

Explanation:

hope it helps. I tried my best

Answer 2

1. PE = 75J, KE=39J

When a ball is just about to touch the ground while falling it has maximum KE and minimum PE, 0. Therefore, Total energy = KE+0. Similarly, when object is located at a height it's KE=0, PE=maximum. So KE while falling = PE at the start of the fall = 75J

PE+KE=Total Energy

while falling,

0+75J = Total Energy

Therefore, if PE=36J, KE=75J-36J=39J

2. Draw the ray diagram yourself....you might use the nature of image below as hint

NATURE of IMAGE:-

Magnified

Located at more distance from the object

Real

Inverted

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