Thursday

July 24, 2014

July 24, 2014

Posted by **anonymous** on Wednesday, October 25, 2006 at 8:02pm.

"Projectiles launched at an angle"

1. A golfer can hit a golf ball a horizontal distance of over 300 m on a good drive. What maximum height will a 301.5 m drive reach if it is launced at an angle of 25.0 degrees to the ground? (Hint: At the top of its flight, the ball's vertical velocity component will be zero.)

2. A baseball is trhown at an angle of 25 degrees relative to the ground at a speed of 23.0 m/s. If the ball was caught 42.0 m from the thrower, how long was it in the air? How high was the tallest spot in the ball's path?

3. Salmon often jump waterfalls to reach their breeding grounds. Starting 2.00 m from a waterfall 0.55 m in height, at what minimum speed must a salmon jumping at an angle of 32.0 degrees leave the water to continue upstream?

4. A quarterback throws the football to a stationary receiver who is 31.5 m 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 quarterback throw the ball for it to reach the receiver? What is the ball's highest point during its flight?

I know that number 2 is 2.0 s; 4.8 m and that number 4 is 17.7 m/s; 6.60m but I don't know how to solve and show my work.

well..it's not that hard, think about the final velocity for the salmon fish..

i need help on these also

**Related Questions**

physics - I need help solving these problems. I tried but my teacher did not ...

anonymous - I need help solving these problems. I tried but my teacher did not ...

Physics - Two projectiles are launched from ground level at the same angle above...

math - what if ur teach iz a total which? also what happens when you get totaly ...

physics. HELP - A projectile is launched horizontally with a speed of 80.0 m/s. ...

physics. HELP - A projectile is launched horizontally with a speed of 80.0 m/s. ...

physics - Why projectiles launched at complimentary angles have the same range?

Discrete Math - So = 2 S1 = 5 Sn = - Sn - 1 + nSn - 2, n >_ 2 How do I ...

phyics - A projectile is launched horizontally with a speed of 80.0 m/s. If the ...

Physics - Two projectiles are launched form ground elvel at the same angle above...