Question

 Convert (a) 50 rev to radians, (b) 48 rad to revolutions, (c) 72 rps(revolutions per second) to degree/s, (d ) 1.50 x 10³ rpm (revolution per minute) to rad/s,

Answer 1

(a) $50\ rev=50\cdot2\pi=314.159\ rad$

(b) $48\ rad=7.639 \ rev$

(c) $72\ rps=72\cdot360°=25920\ degree/s$

(d) $1.50\cdot10^3\ rpm=1500\cdot2\pi/60=157.08\ rad/s$