Question

two objects A and B are made to fall freely from a height 'h' and 2h at same instant then what is the difference between their final velocity . if v is the final of A​

Answer 1

Answer:

Explanation:

V²-U²=2(-g)(-h)

VA= √(2gh)

V²-U²=2(-g)(-2h)

VB= √(4gh)

Difference between final velocity = ✓(4gh) - ✓ (2gh)=2√(gh)-√2(gh)

= ✓(2gh)[✓2-1].

=V[✓2-1].

Given ✓(2gh)= VA =V