A force of 10N is required to stretch a spring from 20cm to 25cm. What is the spring constant in N/m2 Be careful of unit A) 0.005 N/m<

Question

A force of 10N is required to stretch a spring from 20cm to 25cm. What is the spring constant in N/m2 Be careful of unit
A) 0.005 N/m
B) 0.40 N/m
C) 40 N/m
D) 200 N/m

in progress 0
Linh Đan 3 years 2021-08-22T05:26:53+00:00 1 Answers 5 views 0

Answers ( )

    0
    2021-08-22T05:28:41+00:00

    Answer:

    C) 40 N/m

    Explanation:

    If we ASSUME that the spring is un-stretched at the zero cm position

    k = F/Δx = 10/0.25 = 40 N/m

Leave an answer

Browse

Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )