Select the correct answer. A bus is traveling with a uniform acceleration of 2.75 meters/second2. If the initial velocity of the
2 answers:
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Answer:
is the minimum depth of snow for survivable stopping.
Explanation:
Given:
- terminal velocity of fall,
- mass of the paratrooper,
- force on the paratrooper by the ice to stop him,
<u>Firstly, we calculate the deceleration caused in the snow:</u>
Now, using equation of motion:
....................(1)
where:
v = final velocity of the body after stopping
u = initial velocity of the body just before hitting the snow
a = acceleration of the body in the snow
s = distance through in the snow
Putting respective values in eq. (1)