40 s of constant angul ar accel er ati on i t tur ns

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Unformatted text preview: i t tur ns at a r ate of 2.7 104 r ev/mi n. (a) Fi nd the dr i l l 's angul ar accel er ati on. r ad/s2 (b) Deter mi ne the angl e (i n r adi ans) thr ough whi ch the dr i l l r otates dur i ng thi s per i od. r ad 6. –/1 points S e rCP 9 7.P .013.MI .FB . A r otati ng wheel r equi r es 6.00 s to r otate 30.0 r evol uti ons. Its angul ar vel oci ty at the end of the 6.00­s i nter val i s 97.0 r ad/s. What i s the constant angul ar accel er ati on (i n r ad/s) of the wheel ? r ad/s2 7. –/4 points S e rCP 9 7.P .012. A 36.8­cm di ameter di sk r otates wi th a constant angul ar accel er ati on of 2.50 r ad/s2. It star ts f r om r est at t = 0, and a l i ne dr awn f r om the center of the di sk to a poi nt P on the r i m of the di sk makes an angl e of 57.3° wi th the posi ti ve x­axi s at thi s ti me. (a) Fi nd the angul ar speed of the wheel at t = 2.30 s. r ad/s (b) Fi nd the l i near vel oci ty and tangenti al accel er ati on of P at t = 2.30 s. l i near vel oci ty m /s tangenti al accel er ati on m /s 2 (...
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