Maria throws an apple vertically upward from a height of 1.4 m with an initial velocity of +3.1 m/s. will the apple reach a friend in a tree house 4.2 m above the ground? the acceleration due to gravity is 9.81 m/s 2 .

Explanation:

It is given that,

Initial position of the Apple,

Initial velocity, u = 3.1 m/s

Position of friend, Y = 4.2 m

Using second equation of motion as :

..............(1)

On solving the above quadratic equation we get t = 2.02 seconds

Since, the value of t is real. So, the apple will reach a friend in a tree house. Hence, this is the required solution.                                    

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