# What will be the anser?

##### 2 Answers

#### Explanation:

Here,considering speed to be the magnitude of linear velocity.

So,if it is moving with constant speed of

If its linear acceleration is

Given,

Again angle between

So,

Or,

Given,

If,

I.e

Given,

So, putting the values and arranging we get,

Putting this value of

Slightly shorter approach, same answer

Acceleration vector in non-uniform circular motion is:

#bba(t) = underbrace(r dot theta \ bbhat e_theta)_("tangential ") - underbrace(v^2/r\ bb hat e_r)_("inward radial: " = bba_r) #

In given geometry: