1.

A_man_of_mass_60_kg_and_a_boy_of_mass_30_kg_are_standing_together_on_a_frictionless_ice_surface._If_they_push_each_other_apart,_the_man_moves_away_with_a_speed_of_0.4m/s_relative_to_ice._After_5s_they_will_be_away_from_each_other_at_a_distance_of$

A. 9 m
B. 3 m
C. 6 m
D. 30 m
Answer» D. 30 m


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