Ask Question
26 April, 17:00

A boy 12.0 m above the ground in a tree throws a ball for his dog, who is standing right below the tree and starts running the instant the ball is thrown. If the boy throws the ball horizontally at 8.50 m/s, (a) how fast must the dog run to catch the ball just as it reaches the ground, and (b) how far from the tree will the dog catch the ball?

+2
Answers (1)
  1. 26 April, 17:05
    0
    Height covered = 12m

    time to fall by 12 m

    s = 1/2 gt²

    12 = 1/2 g t²

    t = 1.565 s

    Horizontal distance of throw

    = 8.5 x 1.565

    = 13.3 m

    This distance is to be covered by dog during the time ball falls ie 1.565 s

    Speed of dog required = 13.3 / 1.565

    = 8.5 m / s

    b) dog will catch the ball at a distance of 13.3 m.
Know the Answer?
Not Sure About the Answer?
Find an answer to your question 👍 “A boy 12.0 m above the ground in a tree throws a ball for his dog, who is standing right below the tree and starts running the instant the ...” in 📗 Physics if the answers seem to be not correct or there’s no answer. Try a smart search to find answers to similar questions.
Search for Other Answers