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A piece of putty is located at point A on the rim of the grinding wheel of radius r = 360/π cm rotating about a horizontal axis . The putty is dislodged from point A when the diameter through A is horizontal . It then rises vertically and returns to A the instant the wheel completes one revolution . The speed of a point on the rim of the wheel is ?

A piece of putty is located at point A on the rim of the grinding wheel of radius r = 360/π cm rotating about a horizontal axis . The putty is dislodged from point A when the diameter through A is horizontal . It then rises vertically and returns to A the instant the wheel completes one revolution . The speed of a point on the rim of the wheel is ?

Grade:11

1 Answers

Vikas TU
14149 Points
7 years ago
time taken by putty for coming upwards and downwards both,
t = 2v/g
where t is also teh wheel's motion.
wheel's constant speed,
v = distance / time = (2 pi r)/(2v/g)
or
t = 2 pi r /v
and distance is also would be = 0.5gt^2
solve these two eqns. and get value from
F = mv^2/r.

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