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Byju's Answer

Standard XII

Physics

Race of Rollers

Three blocks ...

Question

Three blocks $A, B$ and $C$ weighing $1 k g, 8 k g$ and $27 k g$ respectively are connected as shown in the figure with an inextensible string and are moving on a smooth surface. $T_{3}$ is equal to $36 N$ . then $T_{2}$ is

18 N

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9 N

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3.375 N

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1.25 N

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Solution

The correct option is B $9 N$
$T_{3} = 36 N$
Considering all the three blocks in a system-
$F_{e x t} = m a T_{3} = 36 a 36 = 36 a \Rightarrow a = 1 m / s^{2}$
Next,
Considering only box $C$ in a sytem
$F_{e x t} = m a T_{3} - T_{2} = 27 a 36 - T_{2} = 27 (1) \Rightarrow T_{2} = 36 - 27 = 9 N$

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Similar questions

Q. Three blocks

A

B

and

C

weighing

1 k g, 8 k g

and

27 k g

respectively are connected as shown in the figure, with an inextensible string and are moving on a smooth surface. If tension

T_{3}

is equal to

36 N

, then tension

T_{2}

Q. Three blocks

A

B

and

C

weighing

1, 8

and

27 kg

respectively are connected as shown in the figure with an inextensible string and are moving on a smooth surface. If

T_{3}

is equal to

36 N

, then

T_{2}

Q. Three blocks A, B and C weighing 1, 8 and 27 kg respectively are connected as shown in the figure with an inextensible string and are moving on a smooth surface.

T_{3}

is equal to 36 N. Then

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Three blocks A, B and C weighing 1, 8 and 27 kg respectively are connected as shown in the figure with an in extensible string and are moving on a smooth surface. $T_{3}$ is equal to 36 N. Then $T_{2}$ is

Q. Three blocks

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B

and

C

weighing

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8

and

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respectively are connected as shown in the figure with an inextensible string and are moving on a smooth surface.

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Three blocks A,B and C weighing 1 kg,8 kg and 27 kg respectively are connected as shown in the figure with an inextensible string and are moving on a smooth surface. T3 is equal to 36 N. then T2 is

The correct option is B 9 NT3=36NConsidering all the three blocks in a system-Fext=maT3=36a36=36a⇒a=1m/s2Next,Considering only box C in a sytemFext=maT3−T2=27a36−T2=27(1)⇒T2=36−27=9N

Three blocks $A, B$ and $C$ weighing $1 k g, 8 k g$ and $27 k g$ respectively are connected as shown in the figure with an inextensible string and are moving on a smooth surface. $T_{3}$ is equal to $36 N$ . then $T_{2}$ is

The correct option is B $9 N$
$T_{3} = 36 N$
Considering all the three blocks in a system-
$F_{e x t} = m a T_{3} = 36 a 36 = 36 a \Rightarrow a = 1 m / s^{2}$
Next,
Considering only box $C$ in a sytem
$F_{e x t} = m a T_{3} - T_{2} = 27 a 36 - T_{2} = 27 (1) \Rightarrow T_{2} = 36 - 27 = 9 N$