Question

Please answer it I need it urgently​

Answer 1

60 m/s...........

.......

Answer 2

Given :-

Angular Speed = w = 75 rad/s

radius of the wheel = r = 0.8 m

Now as we know a relationship,

v = wr (Here, v is the linear velocity).

v = (75 × 0.8)

v = 60 m/s

Some more information :-

1. In one rotation a body completes 2π rad distance.

2. In angle 2π = 2(180°) = 360°

Therefore, in one rotation a body rotates 2π rad or 360°.

3. Dimensional Formula of Angular Velocity = M⁰L⁰T-¹

Lets know how to calculate Dimensional formula of Angular Velocity.

As we know that,

v = wr

w = v/r

Dimensional Formula of v = L/T

w = L/T × L

w = M⁰L⁰T-¹