A robot drops a camera off the rim of a 239 m high cliff on Mars, where the free-fall acceleration is -3.7m/s2. What is the velocity with which the camera hits the ground? What is the time required for it to hit the ground?
by 
Nana2000
ANSWERS: 1
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There are many equations for uniform acceleration but the main ones you need to remember are: s = u t + half a t^2 and v = a t s = distance u = initial velocity v = final velocity t = time a = acceleration The first one will give you the time when the camera hits the ground, the second one will give you the velocity. But remember: velocity = speed AND direction, so make sure you get the signs right. Most of the other equations can be worked out from these two.
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