Changing speed (non-uniform circular motion)

Question

A cart is going around a circular track. The cart is located at a position. Which is defined by the angle theta, 28 degrees above horizontal.The radius of the track is 2.5 m. At this time the cart is speeding up at a rate of 2.1 m/s². What is the speed (v₄) of the cart at this time?

Answer 1

Hello Nathan ,

Can you draw a 2 D diagram to show which angle is 28 degrees ?

Which radius is 2.5 m