In the diagram, two blocks with masses m and 3m respectively are in contact on a horizontal frictionless surface. If they are being pushed with a force F as shown. What is a correct expression for the acceleration of the 3m block?
A. F/3m
B. F/4m
C. 3F/m
D. 4F/m
Answer:B
In the diagram, two blocks with masses m and 3m respectively are in contact on a horizontal frictionless surface. If they are being pushed with a force F as shown. What is a correct expression for the acceleration of the 3m block?
A. F/3m B. F/4m C. 3F/m D. 4F/m