[填空题]
A 70-cm-diameter whe2p.c 3r:ilt1 zsoij 4y;rm5l k/xkt6z6vrr a28 3tsogel accelerates uniformly about its center from 130 rpm to 280m rg6a zs 68kv/olrt;3rk52xt rpm in 4.0 s. Determine (a) its angular acceleration,$\approx$ $rad/s^2$(Round to one decimal places) (b) the radial and tangential components of the linear acceleration of a point on the edge of the wheel 2.0 s after it has started accelerating. $a_R$ $m/s^2$ $a_{tan}$ $m/s^2$
Post time 2025-2-18 20:00:22
