PLEASE HELP ASAP!!!!!
1 answer:
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Answer:
5 secs
Step-by-step explanation:
The height of the object is given as:
The moment when the object hits the ground, the height of the object will be 0 m.
Hence:
Solving this for t:
Divide through by 16 and move all parameters to the left hand side:
Since time cannot be negative, time, t = 5 secs.
The object will hit the ground after 5 secs.
Given function is
At t= 79.5 degree.
So we can place t= 79.5 in given equation
=
=
=
So elevation equal to 625 meter at t = 79.5 degree.
At t= 79.5 degree.
So we can place t= 79.5 in given equation
=
=
=
So elevation equal to 625 meter at t = 79.5 degree.