Question

A particle moves along a circle of radius (20/π) m with constant tangential acceleration if the velocity of the particle 80m/sec, at the end of second revolution after motion has begun the tangential acceleration is

Answer 1

Answer:

A particle moves along a circle of radius (20/π) m with constant tangential acceleration if the velocity of the particle 80m/sec, at the end of second revolution after motion has begun the tangential acceleration is

Answer 2

Answer:

40 m/s²

Explanation:

r = $\frac{20}{\pi }$ m

v = 80 m/s

θ = 2 revolutions = 4π rad.

Using Equation :

ω² = ω₀² + 2αθ     ..(ω₀=0)

ω² = 2αθ     ..(ω=v/r  &  a=rα)

a = v²/2rθ

a = 40 m/s²