A particle is moving in a circle of radius 20 cm has a linear speed of `10 m//s` at a certain instant and linear speed is increases at the rate of `2m

A particle is moving in a circle of radius 20 cm has a linear speed of `10 m//s` at a certain instant and linear speed is increases at the rate of `2m//s^(2)`. What is the rate at which its acceleration in U.C.M. is increasing at that instant?
A. `400 m//s^(2)`
B. `200m//s^(3)`
C. `300m//s^(3)`
D. `100m//s^(3)`

Monjur Alahi

4 views

2025-01-04 04:42

1 Answers

Salim Ahmed Kawsar

Correct Answer - B
`(d)/(dt)((v^(2))/(r))=(2v)/(r) (dv)/(dt)`

4 views Answered 2023-02-05 15:29

Related Questions

The decay rate of certain substances is directly proportional to the amount present at that instant. Initially,

2 Answers 4 Views

The rate of a certain reaction is given by , rate `=K [H^(+) ]^(n)` . The rate increases 100 times when the pH changes from 3 to 1 . The order (n) of

2 Answers 4 Views

A particle is moving in a circle of a radius 40 cm has a linear speed of `30m//s` at a certains intant its linear speed is increasesing at the rate of

2 Answers 12 Views

A particle of mass M is moving in a horizontal circle of radius R with uniform speed V. When it moves from one point to a diametrically opposite point

2 Answers 4 Views

A car is moving in a circular path of radius `500m` with a speed of `30 m//s`. If the speed is increased at the rate of `2 m//s^(2)`, the resultant ac

2 Answers 5 Views

If a particle is moving along a circle of radius 3 m with a constant speed `9 m//s`, then it covers a quarter of the circle in time of

2 Answers 5 Views

A particle is moving along circular path of radius 40 m with a uniform speed of `20m//s`. Then the time taken for the particle to complete half revolu

2 Answers 4 Views

The angular speed of a particle,moving in a circle of radius 20 cm ,increases from ` 2 rad //s to 40 rad//s` in 19 s the ratio of its centripetal acce

2 Answers 4 Views

A car of mass m moves in a horizontal circular path of radius r meter. At an instant its speed is `Vm//s` and is increasing at a rate of a `m//sec^(2)

2 Answers 4 Views

If a particle moves in a circle of radius r with constant speed under centripetal force F, then the work done in completing full circle will be ,

2 Answers 5 Views

এক্সাম দিয়ে মেধা যাচাই করুন

Job Preparation (1125)

Admission (754)

এসএসসি (10)

এইচএসসি (5)