Q: A boy of mass 52 kg jumps with a horizontal velocity of 2 m/s onto a stationary cart of mass 3 kg. The cart is fixed with frictionless wheels. Which one of the following would be the speed of the cart?
(a)2.15 m/s
(b)1.89 m/s
(c)1.51 m/s
(d)2.51 m/s
Correct Answer: (b)
The correct answer is (d) '2·51 m/s'. This question from the General Studies domain tests knowledge of Miscellaneous.