One or more external forces are exerted on each object enclosed in a dashed box
ID: 2145186 • Letter: O
Question
One or more external forces are exerted on each object enclosed in a dashed box shown in the figure below. Identify the reaction to each of these forces. (Assume that (a), (b) and (c) occur on Earth while (c), (d) and (e) occur far from any outside gravitational influences. Select all that apply.)
(a) the spring exerts a force (b) the wagon exerts a force downward on the Earthto the right on the wallto the right on the handupward on the Earthto the left on the wallto the left on the handdownward on the Earth due to gravitational attractionupward on the Earth due to gravitational attractionupward to the left on the handleupward on the Earth due to contactdownward to the left on the handledownward on the Earth due to contact
(c) the ball exerts a force (d) m exerts a force downward on the Earthdownward to the left on the playerupward to the right on the playerdownward to the right on the playerupward on the Earth
to the right on Mupward on Mdownward on Mto the left on M
(e) ?q exerts a force (f) the iron exerts a force upward on Qdownward on Qto the left on Qto the right on Q
to the right on the magnetdownward on the magnetto the left on the magnetupward on the magnet
Explanation / Answer
a) Left on hand & right on wall
b) down & left on handle, upward on earth due to gravitational attraction
c) down and right on player, upward on earth
d) [dont know what it means by field force] probably left on M
e) to the left on Q
f) to the left on the magnet
[(b) is definitely -not- downwards on the earth]
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