A mass 2 kg describes a circle of radius 1 m on a smooth horizontal table at a uniform speed .If is joined to the centre of the circle by a string, wh

Question

A mass 2 kg describes a circle of radius 1 m on a smooth horizontal table at a uniform speed .If is joined to the centre of the circle by a string, wh

A mass 2 kg describes a circle of radius 1 m on a smooth horizontal table at a uniform speed .If is joined to the centre of the circle by a string, which can just withstand 32 N, then the greatest number of revolution per minute , perfomed by the mass would be
A. 38
B. 4
C. 76
D. 16

Monjur Alahi

8 views

2025-01-04 04:42

1 Answers

Related Questions

A body of mass 2 kg is tied to the end od a string 2 m long and revolved in horizontal circle .If the breaking tension of the string is 400 N, then th

2 Answers 5 Views

A string breaks if its tension exceeds 10 newtons . A stone of mass 250 gm tied to this string of length 10 cm is rotated in a horizontal circle. The

2 Answers 4 Views

A ball of mass 0.1 Kg. is whirled in a horizontal circle of radius 1 m . by means of a string at an initial speed of 10 R.P.M. Keeping the radius cons

2 Answers 4 Views

A particle describes a horizontal circle in a conical funne whoses inner surface is smooth with speed of `0.5m//s` . What is the height of the plane o

2 Answers 6 Views

A stone of mass `1//2` kg is whriled round the end of a piece of string in a horizontal circle of radius half a meter with a uniform speed of `1 m//s`

2 Answers 5 Views

If a bodyof mass 1000 gm is tied to free end of string of length 100 cm and whirled in a horizontal circle in a second, then the tecsion in the string

2 Answers 5 Views

A particle describes a horizontal circle on the smooth inner surface of a conical funnel as shown in Fig. If the height of the plane of the circle abo

2 Answers 7 Views

A mass of 2 kg tied to a string 1 m length is rotate in a verticle circle with a uniform speed of `4 m//s`. The tension in the string will be 52 N, wh

2 Answers 4 Views

A mass of 5 kg is tied to a string of length 1.0 m is rotated in vertical circle with a uniform speed of `4 m//s` . The tension in the string will be

2 Answers 9 Views

A uniform ring rolls on a horizontal surface with out slipping. Its centre of mass moves with a constant speed v. then speed of the upper most point o

2 Answers 4 Views

Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

Salim Ahmed Kawsar

Correct Answer - A
`T=mr omega^(2)=m r 4 pi ^(2)n^(2)`
` therefore n=sqrt((T)/(mr4pi^(2)))=sqrt(((2xx16))/(2xx1xx4xx10))`
`=(2)/(sqrt10)rps`
`=(120)/(3.16)=38rpm`.

8 views Answered 2023-02-05 15:29