Consider a disc rotating in the hor...
Question

# Consider a disc rotating in the horizontal plane with a constant angular speed ( omega ) about its centre O. The disc has a shaded region on one side of the diameter and an unshaded region on the other side as shown in the fig. When the disc is in the orientation as shown, two pebbles ( P ) and ( Q ) are simultaneously projected at an angle towards R. The velocity of projection is in the ( y-z ) plane and is same for both pebbles with respect to the disc. Assume that (i) they land back on the disc before the disc has completed ( frac{1}{8} ) rotation, (ii) their range is less than half the disc radius, and (iii) ( omega ) remains constant throughout.(a) P lands in the shaded region and ( Q ) in theunshaded region.(b) P lands in the unshaded region and Q shadedregion.(c) Both ( mathrm{P} ) and ( mathrm{Q} ) land in the unshaded region(d) Both ( P ) and ( Q ) land in the shaded region.

NEET/Medical Exams
Physics
Solution
11
4.0 (1 ratings)

It is easy to see that point ( Q ) will land in the unshaded region. This is because the angular...(Read complete answer below..)