Question #ee704

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Answer 1 · 2017-05-18T23:22:28

4m/s

you have some #(kg*m)/s#. To get #m/s# you have to divide by kg:
#((kg*m)/s)/(kg)=(m*kg)/(s*kg)=m/s#
For your situation:
#(180(kg*m)/s)/(45kg)= 4m/s#

Answer 2 · 2017-05-18T23:24:29

#4ms^-1#

Momentum (written as #rho#) is defined as the product of the object's mass and it's velocity.

#rho = #mass x velocity
#180 = 45 v#
#v = 4 ms^-1#