From a height of 25 meters a ball is thrown vertically upwards at a velocity of 5 meters per second.

a.What time in seconds will the ball reach its maximum height?

b.What is its maximum height?

c.When will the ball strike the ground?

d.What will be the ball’s velocity when it strikes the ground?

can someone help me please!

1 answer

v = 5-9.8t
h = 25+5t-4.9t^2

Now look for when v=0 or h=0