Question
a particle is moving along a circle such that its speed increases at a constant rate 0f 10m/s2 if radius of the circle is 10m and at an instant the speed of the particle is 20m/s then the angle between the velocity and the acceleration of the particle at that instant is
1. 1/tan(4)
2. 1/tan(2)
3. 1/tan(1/4)
4. 1/tan(1/2)