Name
Phys 2010 (NSCC), Fall 2007
Problem Set #2
1. An particle starts its motion at the origin with a velocity of +2.5m
sand moves with an
acceleration of a=−0.55 m
s2. (a) How much time elapses before it reverses direction? (b)
How far will the particle move in that time?
2. How long does it take a rock dropped (from rest) to fall 80 m? What is its speed when
it has fallen this distance?
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