az (m/s2) 10.0 5.0 - (s) 6.0 2.0 4.0
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A 4.50 kg experimental
cart undergoes an acceleration in
a straight line (the x-axis). The
graph in Fig. shows this
acceleration as a function of
time. (a) Find the maximum net
force on this cart. When does this
maximum force occur? (b) During
what times is the net force on the
cart a constant? (c) When is the
net force equal to zero?
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