CameraIcon

SearchIcon

MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Torque about a Point

A uniform met...

Question

A uniform meter scale balances at the $40 c m$ mark when weights of $10 g$ and $20 g$ are suspended from the $10 c m$ and $20 c m$ marks. The weight of the metre scale is

A

50 g

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

B

60 g

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

C

10 g

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

D

80 g

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

Open in App

Solution

The correct option is C $10 g$

Sum of moments anti clockwise $= 100 + 40$
Sum of moments clockwise $= 50 \times w$
By principal of moments
Sum of clockwise moments $=$ Sum of anti clockwise moments
$\Rightarrow 50 \times w = 500$
$w = 10 g$
Weight of meter scale $= 10 g$ .

Suggest Corrections

thumbs-up

0

Similar questions

Q. A meter stick is hung from two spring balances

A

B

of equal lengths that are located at the

20 c m

70 c m

marks of the meter stick. Weights of

2.0 N

are placed at the

10 c m

40 c m

marks, while a weight of

1.0 N

is placed at the

90 c m

mark. The weight of the uniform meter stick is

1.5 N

. Determine the scale readings of the two balances

A

B

Q. A meter stick is hung from two spring balances

A

B

of equal lengths that are located at

20 c m

70 c m

mark of the meter stick. Weights of

2 N

10 c m

40 c m

marks, while a weight of

1.0 N

is placed at the

90 c m

mark. The weight of the uniform meter stick is

1.5 N

. Determine the scale readings of the two balances

A

B

Q. A uniform metre scale has two weights of 10 gf and 8 gf suspended at the 10 cm and 80 cm marks respectively. If the metre scale itself weights 50 gf, find where must the weight be, so that the metre scale stays balanced?

Q. Figure represents a metre scale balancing on a knife edge at 20 cm mark. When a weight of 60 N is suspended from 10 cm mark. Calculate the weight of the ruler(in N).

Q. A uniform meter ruler of weight

0.1 k g f

is balanced on a fulcrum at

40 c m

mark by suspending a weight,

w

20 c m

mark . What is the value of

w

?

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

PHYSICS

Watch in App

explore_more_icon

Explore more

Torque about a Point

Standard XII Physics

Join BYJU'S Learning Program

CrossIcon