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aggieboy
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an arrow is fired with a speed of 20.0m/s at at block of styrofoam resting on a smooth surface. The arrow penetrates a certain distance into the block before coming to rest relative to it. during this process the arrow's deceleration has a magnitude of 1550m/s2 and the block's acceleration has a magnitude of 450m/s2. How long does it take for the arrow to stop moving with respect to the block?
v=vintial + acceleration(t) solve for time
i've used this equation but can't figure out how to get time without the positioning of the block from where the arrow was fired.
Homework Equations
v=vintial + acceleration(t) solve for time
The Attempt at a Solution
i've used this equation but can't figure out how to get time without the positioning of the block from where the arrow was fired.