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if you throw a paper airplane due east, in which direction does friction act?
if two paper airplanes were thrown towards each other, one traveling at a rate of 2 meters per second to the east and the other at a rate of 5 meters per second to the west, how fast would it seem like the slower one was traveling from the perspective of the faster airplane?

explanation:

newton's third law, for every action there is an equal and opposite reaction.

the small 0.38-kg slider is known to move from position a to position b along the vertical-plane slot. determine (a) the work done on the body by its weight and (b) the work done on the body by the spring. the distance r = 0.70 m, the spring modulus k = 154 n/m, and the unstretched length of the spring is 0.53 m

explanation:

-reverse card

weight of the box is given as

here this is placed on the inclined of angle 42 degree

now this weight will have two components one is along the incline other is perpendicular to it

so here we need to apply a force parallel to incline opposite to its component of weight

so here the component of weight is given as

here we have

so it requires 75 n force to move it upwards