Find the force of interaction between $2 k g$ and $3 k g$ . (Assume all surface are smooth)

2 N

No worries! We‘ve got your back. Try BYJU‘S free classes today!

7 N

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

8 N

No worries! We‘ve got your back. Try BYJU‘S free classes today!

10 N

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is B $7 N$
Considering horizontal motion,

$a = \frac{Total force}{Total mass} = \frac{20 cos 60^{\circ}}{10} = \frac{10}{10} = 1 m / s^{2}$

$1 k g$ block on top of $4 k g$ block is not subjected to any force in the horizontal direction. Hence its mass is not taken into account when considering the total mass.

Considering $3 k g$ and $4 k g$ as a system
FBD of the system as shown below gives,

$N_{1} = m a = 7 \times 1 = 7 N$

Suggest Corrections

Similar questions

Q. Find the force of interaction between

3 k g

and

2 k g

(Assume surfaces are frictionless )

Q. Find the ratio of the force of interaction between the

4 k g

and

2 k g

blocks and

2 k g

and

3 k g

blocks. (Assume all surfaces to be smooth)

Q. Find the force of interaction between

2 k g

and

3 k g

. (Assume all surface are smooth)

Three blocks of masses 2 kg, 3 kg and 5 kg are connected to each other with light string and are then placed on a frictionless surface as shown in the figure. The system is pulled by a force F=10 N then tension T1=

Block A and B have masses of 2kg and 3kg respectively. The ground is smooth. Pis an external force of 10N.The force exerted by B on A is

Join BYJU'S Learning Program

Find the force of interaction between 2 kg and 3 kg. (Assume all surface are smooth)

Find the force of interaction between $2 k g$ and $3 k g$ . (Assume all surface are smooth)