Referring to the figure,
There must be some force in opposite direction of motion so that bicycle come to rest.
total Mass, M=9∗101=90kg
Speed of the motion, V=15m/s
total time of the motion, t=12s
Then acceleration, (magnitude)
a=tV=1215=1.25m/s2
then Force, F=Ma=90∗1.25=112.5N
Comments
Leave a comment