Home
Class 12
PHYSICS
Three blocks with masses m,2m and 3m are...

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 2m ? (g is the acceleration due to gravity).

A

3 mg

B

6 mg

C

zero

D

2 mg

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Similar Questions

Explore conceptually related problems

Two blocks of masses m_1 and m_2 are connected as shown in the figure. The acceleration of the block m_2 is :

Two block of masses m_(1) and m_(2) are connected as shown in the figure. The acceleration of the block m_(2) is:

Three blocks of masses m_1, m_2 and m_3 are connected as shown in the figure. All the surfaces are frictionless and the string and the pulleys are light. Find the acceleration of m_1

Two blocks of masses M_1 and M_2 are placed in contact with each other on a frictionless horizontal surface. If a force F is applied on the block of mass M_1 , what is the contact force between the two blocks?

A block of mass m is placed on a smooth wedge of mass M, as shown in the figure . Just after placiing block m over wedge M.

A block of mass m is suspended by different springs of force constant shown in figure.

Two blocks of masses '3m' and '2m' are in contact on a smooth table. A force P is first applied horizontally on block of mass '3 m' and then on mass '2m'. The contact forces between the two blocks in the two cases are in the ratio:

Two blocks of masses 2m and m are in equilibrium a shown in the figure. Now the string between the blocks is suddenly broken. The accelarations of the blocks A and B respectively, at that instant are

Two blocks of masses m and M are connected by an inextensible light string . When a constant horizontal force acts on the block of mass M. The tension in the string is

In the figure shown, all surfaces are smooth and the pulley is massless. A constant force of magnitude F = (mg)/(2) is acting on the block of mass M. The acceleration of the block M is :