Question

If the motional equation of a particle is expressed as

r(t) vector= 5cos t^2/5 i vector +5sin t^2/5 j vector


which of the following statement is true?
A. It is a uniform circular motion.

B. The path is a parabola.
C. The radial acceleration is a(r) =
2m/s^2
D. The speed is v=2t.​

Answer 1

If the motional equation of a particle is expressed as

r(t) vector= 5cos t^2/5 i vector +5sin t^2/5 j vector

which of the following statement is true?

C. The radial acceleration is a(r) =

2m/s^2