Astudent rides her bicycle to school, which is 6 km north of her home. after school, she rides to the grocery store that is 2 km north of the school.  what is the total distance she travels from home to the grocery store?  for the student, her displacement from home to the grocery store is the same as her distance. how is this possible?  what could the student do to make her displacement different from her distance traveled?

More solar radiation is absorbed by earth’s surface than by

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Afaulty model rocket moves in the xy-plane (the positive y direction is vertically upward). the rocket's acceleration has components ax(t) = ? t2 and ay(t) = ? ? ? t, where ? = 2.50 m/s4 , ? = 9.00 m/s2 , and ? = 1.40 m/s3 . at t = 0 the rocket is at the origin and has velocity ~v0 = v0x ? i + v0y ? j with v0x = 1.00 m/s and v0y = 7.00 m/s. (a) calculate the velocity and position vectors as functions of time. (b) what is the maximum height reached by the rocket? (c) sketch the path of the rocket. (d) what is the horizontal displacement of the rocket when it returns to y = 0?