Ask Question
4 February, 03:32

A machine launches a tennis ball at an angle of 25° above the horizontal at a speed of 14 meters per second. The ball returns to level ground. Which combination of changes must produce an increase in time of flight of a second launch?

A. decrease the launch angle and decrease the ball's initial speedB. decrease the launch angle and increase the ball's initial speedC. increase the launch angle and decrease the ball's initial speedD. increase the launch angle and increase the ball's initial speed

+3
Answers (1)
  1. 4 February, 06:08
    0
    D. increase the launch angle and increase the ball's initial speed

    Explanation:

    for a body undergoing a projectile motion, the time of flight will be the following

    t = (2usin∅) / g

    t=time of flight

    u = the velocity a body undergoes during the motion

    g=gravitational constant (9.81m/s^2)

    ∅=launch angle

    mathematically, as the velocity and angle of inclination increases the time of flight also increases provided that g is constant.

    D. increase the launch angle and increase the ball's initial speed
Know the Answer?
Not Sure About the Answer?
Get an answer to your question ✅ “A machine launches a tennis ball at an angle of 25° above the horizontal at a speed of 14 meters per second. The ball returns to level ...” in 📙 Physics if there is no answer or all answers are wrong, use a search bar and try to find the answer among similar questions.
Search for Other Answers