# science

posted by .

girl throws the ball with a certain angle. It covers maximum horizontal distance R. How much height ball reaches if she throws the same ball vertically upward? Assume her muscles give the ball same speed in each case.

• science -

Maximum range is obtained when throwing at a 45 degree angle, and equals V^2/ g . That is the range, R.

V is the initial velocity of the throw, and g is the acceleration of gravity.

If thrown vertically upward at the same velocity, the height attained is V^2/(2g)' which is R/2.

## Similar Questions

1. ### Science

By throwing a ball at an angle of 50 degrees, a girl can throw it a maximum horizontal distance of R = 38 m on a level field. (a) How far can she throw the same ball vertically upward?
2. ### physics

A boy can throw a ball a maximum horizontal distance of R on a level field. How far can he throw the same ball vertically upward?
3. ### physics

A boy can throw a ball a maximum horizontal distance of R on a level field. How far can he throw the same ball vertically upward?
4. ### physics

A boy can throw a ball a maximum horizontal distance of R on a level field. How far can he throw the same ball vertically upward?
5. ### physics

A boy can throw a ball a maximum horizontal distance of R on a level field. How far can he throw the same ball vertically upward?
6. ### physics

two students are on a balcony 20.6 m above the street. One student throws a ball vertically downward at 14.7 m/s. At the same instant, the other student throws a ball vertically upward at the same speed. The second ball just misses …
7. ### physics

two students are on a balcony 20.6 m above the street. One student throws a ball vertically downward at 14.7 m/s. At the same instant, the other student throws a ball vertically upward at the same speed. The second ball just misses …
8. ### Physics

Two students are on a balcony 19.6 m above the street. One student throws a ball (ball 1) vertically downward at 15.8 m/s; at the same instant, the other student throws a ball (ball 2) vertically upward at the same speed. The second …
9. ### physics

Two students are on a balcony 18.3 m above the street. One student throws a ball (ball 1) vertically downward at 12.2 m/s; at the same instant, the other student throws a ball (ball 2) vertically upward at the same speed. The second …
10. ### physics

Two students are on a balcony 18.3 m above the street. One student throws a ball (ball 1) vertically downward at 12.2 m/s; at the same instant, the other student throws a ball (ball 2) vertically upward at the same speed. The second …

More Similar Questions