If the force constant of the spring is 50N/m. Find the mass of the block if it rests in the given situation. Take g=10m/s2
A
10kg
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
B
20kg
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
30kg
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
40kg
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution
The correct option is A10kg The FBD of spring and block of mass m is as shown
for equilibrium condition, we have 100=kx and kx=mg ⇒100=mg⇒m=10kg
(OR)
The given arrangement of spring system can easily be converted to string system as shown. where tension T=kx So, from the FBDs we have T=mg and, T=100 ⇒mg=100 ∴ the equivalent mass is equal to 100g=10010=10kg