Posted by **Anonymous** on Thursday, April 12, 2012 at 6:59am.

A 400g lemming waddles horizontally off a small 4.9m high cliff with a horizontal

velocity of 0.5m/s.

a. How far from the base of the cliff will the lemming land?

b. What will be the lemmings speed just before landing?

c. What is the lemmings kinetic energy just before landing?

- physics -
**drwls**, Thursday, April 12, 2012 at 7:09am
a. (0.5 m/s)*(fall time)

b. sqrt[(g*(fall time))^2 +0.5^2]

c. (M)[gH + (0.5)^2/2]

where the "fall time" is sqrt(2H/g)

H = 4.9 m

g = 9.8 m/s^2

M = 0.4 kg

Crank it out.

- physics -
**Adenise Paiz**, Friday, October 5, 2012 at 12:09pm
A ball rolls horizontally of an 85 m cliff with a velocity of 11 m/s. How far from the base of the cliff will it land?

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