3 pirs derbarê hevkêşeya sabîta biharê de
1. Bihareke di rewşa daliqandina azad de dirêjahiya wê 10 cm e. Li dawiya azad, giraniyek 200 gramî hatiye daliqandin da ku dirêjahiya biharê 11 cm be. Ger g = 10 m/s2, sabîta hêza biharê çi ye?
Tê zanîn:
Dirêjahiya destpêkê ya biharê (y1) = 10 cm = 0.10 m
Dirêjahiya dawî ya biharê (y2) = 11 cm = 0.11 m
Guhertina dirêjahiya biharê (Δy) = 0.11 – 0.10 = 0.01 metre
Giraniya barê (m) = 200 gram = 0.2 kg
Giraniya barkirinê (w) = mg = (0,2)(10) = 2 Newton
Dixwazin: Sabîta biharê (k)
Çare:
Spring constant formula:
F = k Δy
k = F / Δy = 2 / 0,01 = 200 / 1 = 200 Newton/meter
2. A spring can be stretched so that it is extended by 10 cm with a potential energy of 0.5 Joule. What is the spring constant?
Tê zanîn:
The addition of the spring length (Δy) = 10 cm = 0.1 meter
Spring potential energy (EP) = 0.5 Joule
Dixwazin: Sabîta biharê (k)
Çare:
The spring constant is calculated using the Spring Potential Energy formula:
EP = ½ k Δy2
2 EP = k Δy2
2 (0,5) = k (0,1)2
1 = k (0,01)
k = 1 / 0,01 = 100 / 1 = 100 Newton/meter
3. A spring pulled with a force of 100 N increases its length by 5 cm. Calculate the spring constant.
Tê zanîn:
Hêz (F) = 100 N
Increase in spring length (Δx) = 5 cm = 0.05 m
Dixwazin: Sabîta biharê (k)
Çare:
F = k Δx
k = F / Δx = 100 / 0,05 = 10.000 / 5 = 2000 Newton/meter