Question

Apply sign convention of g, v, u, x, y in case of freely falling body and body thrown upward direction to the eqution of motion withconstant acceleration
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Answer 1

Answer:

g : -ve

v : -ve

u : +ve

x : 0

y : 0

Explanation:

Using the cartesian coordinate system where going upwards represents the +ve y axis and going towards left represents + x axis, we get

• g : since this generates a constant acceleration towards the downward y axis or the negative y axis; we assign the value of g a negative sign

• u : Since the body is thrown upwards, its initial velocity will be towards upwards y axis or +ve y axis and hence the +ve sign

• v : The final velocity will be at the very end of the motion of the will be towards the downward y axis or the negative y axis; as it is coming towards the wall and hence the -ve sign

As for x and y are concerned; we can assign them a positive sign or they can be zero if the ball has zero displacement.