Answer:
by using kinetic and potentail energy
<em>- 4</em>
Step-by-step explanation:
( 3 - r ) / ( 1 + 5) = 7/6
= ⇒ 3 - r = 7 ⇒ r = <em>- 4</em>
Answer:rfr
Step-by-step exujplanation:
rfrfrr