ethanyayger
15.05.2021 •
Mathematics
09
A projectile is fired from a point 10 m below ground level vertically upwards. It passes a target
20 m above ground level and 2 seconds later passes another target which is 50 m above ground
level. Assume that air resistance can be ignored.
a) Find the speed of projection of the projectile.
b) Find the maximum height above the ground reached by the projectile.
C) Find the time taken by the projectile to reach the first target.
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Ответ:
Solution:
Given that,
The diameter of a billiard ball is approximately 6 cm
Diameter = 6 cm
billiard ball is of sphere shape
The volume of sphere is given as:
Thus volume of billiard ball is 113 cubic cm