Question

Elias serves a volleyball at a velocity of 16 m/s. The mass of the volleyball is 0.27 kg. What is the height of the volleyball above the gym floor when its total mechanical energy is 41.70 J? Round to the nearest tenth. m

Answer 1

Its 2.7m

Step-by-step explanation:

Answer 2

2,7 m

Step-by-step explanation:

You can solve this doing an energy balance:

`m*g*h-(1)/(2) *m*v^(2) =41,7[J]`

Solving this equation to get h:

`(41,7- (1)/(2) *m*v^(2) )/(m*g)=h`

Replacing the values and solving brings to 2,7 m