Question

CM0074 11. Two identical carts constrained to move on a straight line, on which sit two twins of same mass, are moving with same velocity. At some time snow begins to drop uniformly vertically downward. Ram, sitting on one of the trolleys, throws off the falling snow sideways with respect to himself and in the second cart shyam is asleep. (Assume that friction is absent) (A) Cart carrying Ram will speed up while cart carrying shyam will slow down (B) Cart carrying Ram will remain at the same speed while cart carrying shyam will slow down (C) Cart carrying Ram will speed up while cart carrying shyam will remain at the same speed (D) Cart carrying Ram as well as shyam will slow down CM0074

Answer 1

(D) Cart carrying Ram as well as shyam will slow down

\(mv_0=(m+m')v\)

\(v'=\frac{mv_0}{m+m'}\)

Since Ram throws sideways, no impulse acting on it.

v' for Ram & Shyam are equal both slow down.