I need help doing what the difference between the symbol and the number

Number :

              Number is actually represents quantity.

Symbol :

              Symbol is actually a character that shows the number.

Explanation:

not moving. pos accel,

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:

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