A student who weighs 530 N is wearing a backpack that weighs 84 N. The student is standing still on level ground. Give your answers to the following questions in Newtons.
a) What is the magnitude of the net force on the student?
b)What is the magnitude of the contact force on the student by the backpack?
c) What is the magnitude of the contact force on the student by the ground?
2007-09-12 19:47:26 · 4 answers · asked by ariddlegirl 1 in Science & Mathematics ➔ Physics
a) On the student there will be no force (i.e. 0 N) as the student is wearing the back pack.
b) However there will be a contact force equal to the weight of the bag pack i.e. = 84 N
c) Contact force on ground will be equal to weight of the student and the weight of the backpack = 530 + 84 = 614 N
2007-09-12 20:15:37 · answer #1 · answered by Ehsan R 3 · 2⤊ 0⤋
a) 0 N
b) 84 N
c) 614 N
2007-09-12 19:57:35 · answer #2 · answered by Demiurge42 7 · 2⤊ 0⤋
a ) zero
b ) 84 N downwards
c) 614 N upwards
2007-09-12 21:06:24 · answer #3 · answered by Madhukar 7 · 1⤊ 1⤋
you should pick my answer as the best one !!!
2007-09-12 20:10:26 · answer #4 · answered by Kirizzle R 1 · 0⤊ 3⤋