Question

A body falls on a surface of coefficient of restitution 0.6 from a height of 1 m. Then the body rebounds to a height of

• A. 0.6 m
• B. 0.4 m
• C. 1 m
• D. 0.36 m

Answer 1

Answer: (D)

0.36 m

Answer 2

$h _ { n } = h e ^ { 2 n }$ $= 1 \times e ^ { 2 \times 1 }$ = $1 \times ( 0.6 ) ^ { 2 } = 0.36 m$