Two blocks A and B,each of the same mass,are | vedclass

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

Question

(B) For block $A$,the entire tension $T$ acts in the horizontal direction,causing horizontal acceleration $a_A = T/m$.For block $B$,the tension $T$ ac

Vedclass · Accepted Answer

$t_A < t_B$

Vedclass · Answer

(B) For block $A$,the entire tension $T$ acts in the horizontal direction,causing horizontal acceleration $a_A = T/m$.For block $B$,the tension $T$ acts along the string. As block $B$ swings,the angle $	heta$ between the string and the horizontal increases. The horizontal component of tension is $T \cos 	heta$. Since $\cos 	heta  0$,the effective horizontal force on $B$ is $T \cos 	heta Thus,the horizontal acceleration of $B$ is $a_B = (T \cos 	heta)/m Since both blocks cover the same horizontal distance $l$,and block $A$ has a higher average horizontal acceleration than block $B$,block $A$ will reach the pulley in less time.Therefore,$t_A < t_B$.

Similar Questions

$A$ light string passing over a smooth light fixed pulley connects two blocks of masses $m_1$ and $m_2$. If the acceleration of the system is $g / 8$,then the ratio of masses is

Two bodies of mass $4\,kg$ and $6\,kg$ are attached to the ends of a string passing over a pulley. The $4\,kg$ mass is also attached to the ground by another string. The tension $T_1$ in this lower string is equal to ......... $N$ (Take $g = 9.8\,m/s^2$)

In the figure,the tension in the diagonal string is $60\,N$. Find the magnitude of the horizontal forces $F_1$ and $F_3$ that must be applied to hold the system in the position shown.

$A$ light string passes over a frictionless pulley. To one of its ends a mass of $6\, kg$ is attached. To its other end a mass of $10\, kg$ is attached. The tension in the thread will be ........ $N$.

Two weights of mass $m_{1}$ and $m_{2} (> m_{1})$ are joined by an inextensible string of negligible mass passing over a fixed frictionless pulley. The magnitude of the acceleration of the loads is

Vedclass Test Series

Exam Paper Generator

Online Exam Module