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[Jorlds]

A projectile is launched vertically from a launch pad with an unknown initial velocity, V0. An unknown time, T, later, an observer is in a pickup which is traveling in such a way that the angle of elevation to the projectile is 22° and increasing at 2° per second. When the pickup is 750 m away from the launch pad, it is moving away from the launch pad at 25 m/sec. h(t) = -4.9t2 + V0 t , and that v(t) = h‘(t).
A) Find the initial velocity, V0.
B) Find the time, T, since launch.

 

[Deleted member 4993]

A projectile is launched vertically from a launch pad with an unknown initial velocity, V0. An unknown time, T, later, an observer is in a pickup which is traveling in such a way that the angle of elevation to the projectile is 22° and increasing at 2° per second. When the pickup is 750 m away from the launch pad, it is moving away from the launch pad at 25 m/sec. h(t) = -4.9t2 + V0 t , and that v(t) = h‘(t).
A) Find the initial velocity, V0.
B) Find the time, T, since launch.

First draw a sketch of the situation including an expected path of the projectile.

continue...

Please follow the rules of posting in this forum, as enunciated at:

https://www.freemathhelp.com/forum/threads/read-before-posting.109846/#post-486520

Please share your work/thoughts about this assignment.

 

[Jorlds]

I have just no idea how to start this problem.. After draw a sketch, is it right to use tan or something else?
Is there any way to use this function ( h(t) = -4.9t2 + V0 t ) to solve this problem? Without like tan or sin things

 

[Deleted member 4993]

I have just no idea how to start this problem.. After draw a sketch, is it right to use tan or something else?
Is there any way to use this function ( h(t) = -4.9t2 + V0 t ) to solve this problem? Without like tan or sin things

We will have to use - all the mathematical tools - that was pre-requisite for this course.

Please share your sketch - with labels.

"Is there any way to use this function ( h(t) = -4.9t² + V₀ t ) to solve this problem? Without like tan or sin things" .... I am afraid NOT.

Is this a problem from your Physics class or Math class"?

Again - please share your sketch - with labels.

 

[Steven G]

Drawing the diagram is a good move but to receive help don't you think that we need see your diagram? Isn't possible that your diagram is wrong and we will not know if you do not post it? So please post the diagram as all we want to do is help you. Thanks.