jee-main 2019 Q4

jee-main · India · session2_12apr_shift1 Momentum and Collisions Explosion or Breakup – Fragment Velocities or Energies

A man (mass $= 50$ kg) and his son (mass $= 20$ kg) are standing on a frictionless surface facing each other. The man pushes his son so that he starts moving at a speed of $0.70 \text{ m s}^{-1}$ with respect to the man. The speed of the man with respect to the surface is:
(1) $0.20 \text{ m s}^{-1}$
(2) $0.14 \text{ m s}^{-1}$
(3) $0.47 \text{ m s}^{-1}$
(4) $0.28 \text{ m s}^{-1}$

A man (mass $= 50$ kg) and his son (mass $= 20$ kg) are standing on a frictionless surface facing each other. The man pushes his son so that he starts moving at a speed of $0.70 \text{ m s}^{-1}$ with respect to the man. The speed of the man with respect to the surface is:\\
(1) $0.20 \text{ m s}^{-1}$\\
(2) $0.14 \text{ m s}^{-1}$\\
(3) $0.47 \text{ m s}^{-1}$\\
(4) $0.28 \text{ m s}^{-1}$

Paper Questions

Q2 Q3 Q4 Q5 Q6 Q7 Q19 Q26 Q35 Q47 Q48