Question 1127484
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A robot probe drops a camera off the rim of a 239 m high cliff on Mars, where the free fall acceleration is -3.7m/s^2.


a. Find the velocity with which the camera hits the ground.
b. Find the time required for it to hit the ground.
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I solve it as Physics problems, using formulas from Physics.


<pre>
    a) Velocity   V = {{{sqrt(2*g*H)}}} = {{{sqrt(2*3.7*239)}}} = 42.05 m/s.



    b) From  H = {{{(gt^2)/2}}},  the time  t = {{{sqrt((2*H)/g)}}} = {{{sqrt((2*239)/3.7)}}} = 11.37 seconds.
</pre>

Answered and solved.