The displacement y of an object is given by y 245 sin0587t

The displacement y of an object is given by y = 2.45 sin(0.587t + 7.818) Find the velocity v and the acceleration a of the object at t = 2.979. Round your answers to at least 3 sig figs.

Velocity V_t=2.979=y/t=2.45sin(.587*2.979+7.818)/2.979=.407

Acceleration a_t=2.979 = v/t= .407/2.979=.137