to your question is 54 cm
I think it’s either A or B
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Answer:
Tension is also known as Force...
and Force is mass× acceleration.
so....1000×0.70=700N
Answer:
Explanation:
To solve this problem we use the Hooke's Law:
(1)
F is the Force needed to expand or compress the spring by a distance Δx.
The spring stretches 0.2cm per Newton, in other words:
1N=k*0.2cm ⇒ k=1N/0.2cm=5N/cm
The force applied is due to the weight

We replace in (1):
We solve the equation for m: