Ask Question
1 March, 16:24

A football quarterback shows off his skill by throwing a pass 45.20 m downfield and into a bucket. The quarterback consistently launches the ball at 40.00 ∘ above horizontal, and the bucket is placed at the same level from which the ball is thrown.

1. What initial speed is needed so that the ball lands in the bucket?

2. By how much would the launch speed have to be increased if the bucket is moved to 48.50 m downfield?

+4
Answers (1)
  1. 1 March, 19:50
    0
    (1) 46.30m/s

    (2) The launch speed has to increase by 1.66 m/s

    Explanation:

    (1) Initial speed (u) = sqrt (2hg/sin^2A)

    h = 45.20m, g = 9.8m/s^2, A = 40°

    u = sqrt (2*45.2*9.8/sin^2 40°) = sqrt (2144.05) = 46.30m/s

    (2) (u+46.30) = sqrt (2*48.50*9.8/sin^2 40°)

    u+46.30 = sqrt (2300.58)

    u+46.30 = 47.96

    u = 47.96 - 46.30 = 1.66m/s

    Launch speed has to increase by 1.66m/s
Know the Answer?
Not Sure About the Answer?
Get an answer to your question ✅ “A football quarterback shows off his skill by throwing a pass 45.20 m downfield and into a bucket. The quarterback consistently launches ...” 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