# physics

posted by .

A football is thrown upward at a 30 degree angle to the horizontal. To throw a 40.0-m pass, what must be the initial speed of the ball?

• physics -

Range = Vo^2*sin(2A)/g
Range = Vo^2*sin(60)/9.8 = 40
0.08837Vo^2 = 40
Vo^2 = 452.6
Vo = 21.3 m/s

## Similar Questions

1. ### physics

A quarterback throws the football to a stationary receiver who is 22.7 m down the field.The football is thrown at an initial angle of 39◦ to the ground. The acceleration of gravity is 9.81 m/s2 . a) At what initial speed must …
2. ### physics

A football is thrown upward at a(n) 23◦ angleto the horizontal. The acceleration of gravity is 9.8 m/s To throw a(n) 52 m pass, what must be the initial speed of the ball?
3. ### physics

A football is thrown upward at a(n) 37 angle to the horizontal. The acceleration of gravity is 9.8 m/s2 . To throw a(n) 57.8 m pass, what must be the initial speed of the ball?
4. ### physics

A quarterback throws the football to a sta- tionary receiver who is 26 m down the field. The football is thrown at an initial angle of 36.5 to the ground. The acceleration of gravity is 9.81 m/s2 . a) At what initial speed must the …
5. ### physics

A quaterback throws the football to a stationary receiver who is 31.5m down the field. If the football is thrown at an initial angle of 40.0 degrees to the ground, at what initial speed must the quaterback throw the ball for it to …
6. ### physics

A quarterback throws the football to a stationary receiver who is 16 m down the ﬁeld.The football is thrown at an initial angle of38.5◦to the ground.The acceleration of gravity is 9.81 m/s2.a) At what initial speed must …
7. ### AP Physics

A quarterback throws the football to a stationary receiver who is 15.2 m down the ﬁeld. The football is thrown at an initial angle of 42 ◦ to the ground. The acceleration of gravity is 9.81 m/s 2 . a) At what initial speed …
8. ### physics

When baseball players throw the ball in from the outfield, they sometimes allow it to take one bounce before it reaches the infield on the theory that the ball arrives sooner that way. Suppose the angle at which a bounced ball leaves …
9. ### physics

a foot ball is thrown upward with an angle of 30 degree with respect to the horizantal .to throw a 40meter pass what must be the intial speed of the ball?
10. ### physics

A quarterback throws the football to a stationary receiver who is 22.7m down the field. the football is thrown at an initial angle of 39 degrees to the ground. The acceleration of gravity is 9.81m/s^2. a) at what initial speed must …

More Similar Questions