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1. The ratio of the angular speed of the minute hand of a clock to that of its hour hand is)24:1d) 12:1b)60:1lang a horizontal curve of radius 20 m and the coefficient of frictioa) 3600: 1 |
| Answer» <p>The minute hand of a clock covers 360 deg in 60 min or 6 deg/min.</p><p>The hour hand of a clock covers 30 deg in 60 min or 0.5 deg/min.The ratio of the angular speed of the minute to the hour hand = 6/0.5 = 12:1</p> | |