Homework Help: physics

Posted by shan on Thursday, September 25, 2008 at 10:45pm.

A baseball bat makes contact with a ball 1.05 meters above the ground and the ball moves away at a 41.5 degree angle from the horizontal. It's a homer!! The ball lands in the bleachers 133.5 meters away from home plate, 4.1 meters above the ground. How long was the ball in the air? How fast was the ball going when it left the bat?

physics - drwls, Friday, September 26, 2008 at 9:30am
Let T be the time the ball is in the air.

V cos 41.5 * T = 133.5

V sin 41.5 * T - (g/2) T^2 + 1.05 = 4.1

Now solve these two simulataneous equations for V and T. The first eqaution tells you that V = 178.2/T

Substitute that for V in the second equation to eliminate one of the two variables

Answer this Question

Related Questions

physics - 0.10- baseball moves toward home plate with a velocity = (-31 ). After...
physics - a baseball (m = 153 g) approaches a bat horizontally at a speed of 41....
physics - 140gm baseball travel 39m/s hits bat and travels at 45m/s at 30degree ...
Physics - A baseball whose mass is 0.25kg is struck by a bat. just before impact...
Physics - Baseball player A bunts the ball by hitting it in such a way that it ...
Physics! - Baseball player A bunts the ball by hitting it in such a way that it ...
Physics - Baseball player A bunts the ball by hitting it in such a way that it ...
Physics - A 0.140-kg baseball is pitched horizontally at 36.7 m/s. When a player...
Physics - The instant before a batter hits a .14 KG baseball, the velocity of ...
Physics - The instant before a batter hits a .14 KG baseball, the velocity of ...

For Further Reading

First Name:
School Subject:
Answer: