IF THE LINEAR SPEED OF MINUTE HAND HAND OF WALL CLOCK IS 3.14 * 10^-4 M/SEC THEN LENGTH OF MINUTE HAND IS
1. 18 CM
2. 1800 CM
3. 3.14 CM
4. 314 CM
1. 18 CM
2. 1800 CM
3. 3.14 CM
4. 314 CM
Dear Student
Minute hand moves 360 deg = 2 π radians in one hour
so angular velocity = ω = 2 π / 3600 rad/sec
Linear speed = v = r ω
π x 10⁻⁴ m/sec = r x 2 π /3600
=> r = 0.18 meters = 18 cm
Correct option is (1).
Regards
Minute hand moves 360 deg = 2 π radians in one hour
so angular velocity = ω = 2 π / 3600 rad/sec
Linear speed = v = r ω
π x 10⁻⁴ m/sec = r x 2 π /3600
=> r = 0.18 meters = 18 cm
Correct option is (1).
Regards