[填空题]
A particle revolves in a hop0db-gi 9f+ey 9w/ypb rizontal circle of rad0snxvk;55 crt/z2ty jius 2.90 m . At a particular instant, its accelera xjt55k vy;tcr/z s2n0tion is 1.05 $\mathrm{~m} / \mathrm{s}^{2}$ , in a direction that makes an angle of 32.0$^{\circ}$ to its direction of motion. Determine its speed (a) at this moment
(b) 2.00 s later, assuming constant tangential acceleration.
