A particle starts with constant angular acceleration of `"2 rad/s"^(2)` in a circle of radius 4m. Find angle between net acceleration and radial accel

Question

A particle starts with constant angular acceleration of `"2 rad/s"^(2)` in a circle of radius 4m. Find angle between net acceleration and radial accel

A particle starts with constant angular acceleration of `"2 rad/s"^(2)` in a circle of radius 4m. Find angle between net acceleration and radial acceleration after 2 s :-
A. `theta=tan^(-1)((1)/(8))`
B. `theta=tan^(-1)((1)/(4))`
C. `theta=tan^(-1)((1)/(2))`
D. `theta=tan^(-1)((1)/(16))`

Monjur Alahi

4 views

2025-01-04 04:42

1 Answers

Related Questions

The speed of revolution of a particle around a circle is halved and its angular speed is doubled what happens to the radial acceleration ?

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 disc of radius 0.1 m starts from rest with an angular acceleration of ` 4.4 rad//s^(2)` .Then linear velocity of the point on its after 5 s is

2 Answers 5 Views

A particle is moving along a circle of radius 3 m .If its centripetal acceleration is `3ms^(-2)` , its angular velocity in` rad s^(-1)` is

2 Answers 5 Views

A body of mass 0.5 kg is whirled in a verticle circle an angular frequancy of `10 rad //s`.If the radius of the circle is 0.5 m . What is the tension

2 Answers 5 Views

A wheel starts from rest and acquires an angular velocity of `60 rad//s` in half a minute . Then its angular acceleration is

2 Answers 9 Views

Initial angular velocity of a wheel is ` 2 rad//s` .It rotates with a constant angular acceleration of `3.5 rad//s^(2)` .Its angular displacement in 2

2 Answers 6 Views

Angular momentum of body changes by 80 kg `m^(2)//s`, when its angular velocity changes from 20 rad/s to rad/s. Then the change in its kinetic energy

2 Answers 4 Views

A large disc has mass 2kg and radius 0.2 m and initial angular velocity 50 rad/s and small disc has mass 4kg and radius 0.1 m and initial angular velo

2 Answers 8 Views

A body of mass 2 kg and radius of gyration 0.5 m is rotating about an axis. If its angular speed is 2 rad/s, then the angular momentum of the body wil

2 Answers 7 Views

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

Salim Ahmed Kawsar

Correct Answer - A
`vec(alpha)=2"rad/s"`
`r=4m`
`omega=0+2(2) rArr omega=4"rad/s"`
`a_("cp")=omega^(2)r=64`
`a_(t)=alphar=8`
`tan alpha=((a_(t))/(a_(r))), alpha=tan^(-1)((1)/(8))`

4 views Answered 2023-02-05 15:29