Question #349144

What is the horizontal force needed to accelerate a 42 grocery cart from rest to a velocity of 0.80 m/s in 1.75s


1
Expert's answer
2022-06-09T09:59:33-0400

Given:

m=42kgm=42\:\rm kg

v1=0m/sv_1=0\:\rm m/s

v2=0.80m/sv_2=0.80\:\rm m/s

t=1.75st=1.75\:\rm s



F=ma=mv2v1tF=ma=m\frac{v_2-v_1}{t}

F=420.8001.75=19.2NF=42*\frac{0.80-0}{1.75}=19.2\:\rm N


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