Question
Physics Question on Acceleration due to gravity below and above the surface of earth
Three blocks with masses m, 2m and 3m are connected by strings, as shown in the figure. After an upward force F is applied on block m, the masses move upward at constant speed v. What is the net force on the block of mass 2 m? (g is the acceleration due to gravity)
A
Zero
B
2 mg
C
3 mg
D
6 mg
Answer
Zero
Explanation
Solution
The correct option is (A): Zero