A student drops a rock from a bridge to the water 12.7 m below. with what speed does the rock strike the water? the acceleration
1 answer:
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Answer:
- At
, the particle should have a velocity of
.
- At
, the particle should have a velocity of
.
- At
, the particle should have a velocity of
.
For , at
, the particle should have a velocity of
.
Explanation:
Differentiate the displacement of an object (with respect to time) to find the object's velocity.
Note that the in this question, the expression for displacement is undefined (and not differentiable) when is equal to zero. For
:
.
This expression can then be evaluated at ,
, and
to obtain the required results.