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Home Q & A Board Science-Related Homework Help Physics
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ilndrz ilndrz
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11 years ago
I have a physics homework problem that I'm having trouble solving. It says

A missile blasts off and moves straight upward from the ground with constant acceleration. After 3.4 seconds the missile is at 90 ft of height. Find the magnitude of the missile's acceleration and the speed at 90 ft.

What formula can I use for this? I need to figure out both magnitude of acceleration and speed at 90 ft. And if you can solve it, can you show the steps? I'm trying to figure it out with other similar problems. Thanks!
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nvdx3nvdx3
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11 years ago
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11 years ago
The missile gains 90ft. in 3.4 secs. of constant acceleration.
Acceleration = 2d/t^2, = 180/11.56, = 15.571ft/sec.
Velocity = (at) = 15.571 x 3.4, = 52.94ft/sec.
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