Question

A spring has a length of 9 cm when loaded with a 200g mass.
The 200g mass is replaced with a 100g mass. What is the new length of the spring?
A 7 cm
B 8 cm
C 9 cm
D 10 cm
​

Answer 1

Explanation:

ANSWER

m=0.1kg,x=9.8×10

−2

m,T=6.28s

K=

x

mg

⇒k=10

T=2π

K

M

⇒6.28=2×3.14

10

M

1=

10

M

⇒M=10kg=10

4

g