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# Wagon Speed from Impulse

SATPHY-7E1G5J

A $60.0\ kg$ wagon experiences a variable net force in the forward direction according to the graph pictured below. If it starts from rest, what is its speed after 9 seconds?

A

$3.0\ m/s$

B

$6.67\ m/s$

C

$3.33\ m/s$

D

$5.4\ m/s$

E

$1.7\ m/s$