[填空题]
A 70-cm-diameter wheel accelerates uniformly about its center frpc8 :jvr wxf/8k-,hni om ca-170aogv/chugoz nx 4 .b tnb5; k1e130 rpm to 280 rpm 1u-cvgze 4 oto;hx1bn kaga0 cn57/.bin 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
