A player hits a ball towards a net of height 5 m with a speed of 20m/s. The ball just rises up to the top of the net and falls inside it. Find the horizontal distance this Ball would have travelled had there been no net in its way. (Take g=10m/s^2)
Answers
Given : A player hits a ball towards a net of height 5 m with a speed of 20 m/s. The ball just rises up to the top of the net and falls inside it.
(Take g = 10 m/s2)
To Find : the horizontal distance this ball would have travelled had there been no net in its way.
Solution:
speed of 20 m/s
angle = α
Vertical speed = 20sinα
just rises up to the top of the net
=> Vertical speed = 0
=> t = 20sinα/g
V² - U² = 2aS
=> (20sinα)² = 2 g(5)
=> sin²α = g/40
g = 10
=> sin²α = 1/4
=> sin α = 1/2
=> α = 30°
t = 20sinα/g = 20 (1/2)/10 = 1 sec
Horizontal Speed = 20cosα = 20(√3/2) =10√3
Horizontal distance = 2 * 10√3 * 1 = 20√3
Learn More:
A ball thrown vertically up from the top of a tower reaches the ground ...
brainly.in/question/8127453
A ball is thrown vertically upwards from the top of the tower with an ...
brainly.in/question/17451698
Two balls are thrown vertically upward from same point on the ...
brainly.in/question/11481756