Three blocks A, B and C of masses 4, kg,2, kg | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(A) The total mass of the system is $M = m_A + m_B + m_C = 4\, kg + 2\, kg + 1\, kg = 7\, kg$.The external force applied is $F = 14\, N$.The accelerat

Vedclass · Accepted Answer

$6$

Vedclass · Answer

(A) The total mass of the system is $M = m_A + m_B + m_C = 4\, kg + 2\, kg + 1\, kg = 7\, kg$.The external force applied is $F = 14\, N$.The acceleration of the system is $a = \frac{F}{M} = \frac{14\, N}{7\, kg} = 2\, m/s^2$.The contact force between block $A$ and block $B$ is the force required to accelerate blocks $B$ and $C$ together.Therefore,the contact force $F_{AB} = (m_B + m_C) 	imes a$.$F_{AB} = (2\, kg + 1\, kg) 	imes 2\, m/s^2 = 3\, kg 	imes 2\, m/s^2 = 6\, N$.

Three blocks $A, B$ and $C$ of masses $4\, kg$,$2\, kg$ and $1\, kg$ respectively,are in contact on a frictionless surface,as shown. If a force of $14\, N$ is applied on the $4\, kg$ block,then the contact force between $A$ and $B$ is .......... $N$.

Similar Questions

Prickles of Rose are

The value of $\sqrt{42+\sqrt{42+\sqrt{42+\ldots}}}$ is equal to:

$(a+b) \cdot (b+c) \times (a+b+c)$ is equal to

In which plant group is the structure shown below found?

If one side of a triangle is double the other and the angles opposite to these sides differ by $60^{\circ}$,then the triangle is

Vedclass Test Series

Exam Paper Generator

Online Exam Module