2. HAMMER THROW: When a stone is tied at one end of a string and is rotated from the other end then the stone will describe a circle. If we suddenly stop the motion, the stone will go in a directior
tangential to the circular motion.
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(i) The number of tangent/s can be drawn at point 'm' in the above figure is
(a) 1
(b) 2
(c) O
(ii) If mV ll TM, then 2rMm = ?
(d) infinite
(a) 60°
(b) 90°
(c) 30°
(d) 1800
(iii) Given that mM = 8 cm, MV = 10 cm, find mV?
(a) 6 cm (b) 12 cm (c) 15 cm
(iv) When an athlete leaves the string after many revolutions of stone over his/her head,
(d) 4 cm
moves in
path.
(a) straight (b) circular (c) tangential (d) elliptical