Posted by **Lindsay** on Thursday, November 8, 2007 at 6:43pm.

A regulation volleyball court is L = 18.0 m long and a regulation volleyball net is d = 2.43 m high. A volleyball player strikes the ball a height h = 1.76 m directly above the back line, and the ball's initial velocity makes an angle q = 55° with respect to the ground. At what initial speed must the ball be hit so that it lands directly on the opponent's back line?

Would my equation for the x-dir. be Vcos 55*T = 18, since it's the full length of the court?

What would my height for the y-dir. be? Vsin 55*T - (g/2)T^2 = ???

- Physics repost -
**drwls**, Friday, November 9, 2007 at 12:15am
<<Would my equation for the x-dir. be Vcos55*T = 18, since it's the full length of the court?

YES VT = 31.38 m

<<What would my height for the y-dir. be?>>

Vsin55*T - (g/2)T^2 = -1.76

sin55*31.38 - 4.9 T^2 = -1.76

25.71 + 1.76 = 4.9 T^2

T = 2.37 s

V = 13.2 m/s

After you get V by solving the two simultaneous equations, make sure that the net is also cleared by calculating the height at which it passes by the net.

## Answer This Question

## Related Questions

- Physics - A regulation volleyball court is L = 18.0 m long and a regulation ...
- Physics - A regulation volleyball court is L = 18.0 m long and a regulation ...
- Physics - A regulation volleyball court is L = 18.0 m long and a regulation ...
- Physics - A volleyball court is 18 m long from baseline to baseline and the net ...
- Math - A volleyball is his upward by a player in a game. The height h (in fee) ...
- Physics - Stephanie hits a volleyball from a height of 0.80m and gives it on ...
- Physics - Stephanie serves a volleyball from a height of 0.78 m and gives it an...
- Physics - A volleyball is launched straight up at an initial velocity of 2.3 m/s...
- Physics - Stephanie serves a volleyball from a height of 0.78 m and gives it a ...
- Physics - Stephanie hits a volleyball from a height of 0.80 m and gives it an ...

More Related Questions