Measure weight of object hanging from a spring

AI Thread Summary
To measure the weight of an object exceeding 25 N using a spring scale, one effective method involves using a bucket of water to partially submerge the object, which reduces the effective weight measured by the scale. Another suggested approach is to incorporate pulleys, which can distribute the weight and allow the scale to measure a fraction of the total weight. Both techniques utilize commonly available equipment while ensuring the spring scale remains within its limits. These methods provide practical solutions for weighing heavier objects without damaging the scale. Understanding these concepts is essential for effectively applying physics in real-world scenarios.
kitty9035
Messages
17
Reaction score
0

Homework Statement



A spring that can be considered ideal hangs from a stand. Suppose the spring is used in a spring scale that is limited to a maximum value of 25 N, but you would like to weigh an object of mass M that weighs more than 25 N. YOu must use commonly available equipment and the spring scale to determine the weight of the object without breaking the scale. Show one way that the equipment you choose could be used with the spring scale to determine the weight of the object.

Homework Equations





The Attempt at a Solution



How can you do this?? I'm confused
 
Physics news on Phys.org
you could hang the mass from the spring into a bucket of water
 
I imagine you could also use pulleys.
 
TL;DR Summary: I came across this question from a Sri Lankan A-level textbook. Question - An ice cube with a length of 10 cm is immersed in water at 0 °C. An observer observes the ice cube from the water, and it seems to be 7.75 cm long. If the refractive index of water is 4/3, find the height of the ice cube immersed in the water. I could not understand how the apparent height of the ice cube in the water depends on the height of the ice cube immersed in the water. Does anyone have an...
Thread 'Variable mass system : water sprayed into a moving container'
Starting with the mass considerations #m(t)# is mass of water #M_{c}# mass of container and #M(t)# mass of total system $$M(t) = M_{C} + m(t)$$ $$\Rightarrow \frac{dM(t)}{dt} = \frac{dm(t)}{dt}$$ $$P_i = Mv + u \, dm$$ $$P_f = (M + dm)(v + dv)$$ $$\Delta P = M \, dv + (v - u) \, dm$$ $$F = \frac{dP}{dt} = M \frac{dv}{dt} + (v - u) \frac{dm}{dt}$$ $$F = u \frac{dm}{dt} = \rho A u^2$$ from conservation of momentum , the cannon recoils with the same force which it applies. $$\quad \frac{dm}{dt}...
Back
Top