EXAMPLE 2: THE WORK-ENERGY RELAITON
Calculate
the work from time 0 to time t of the constant magnitude force 
that changes its
direction by 
. Assume A moves
with constant speed 
.
Solution:
EXAMPLE 2: THE WORK-ENERGY RELAITON
Calculate
the work from time 0 to time t of the constant magnitude force that changes its
direction by . Assume A moves
with constant speed .
Solution: