more deceleration.
in vertical motion downwards => terminal velocity ... raindrops etc
Answer:
Explanation:
Momentum conservation

Kinetic energy conservation

Solve the system
Thermal equilibrium is a state in which all parts of a system are at the same temperature
31 m/s ÷ 9 m/s² = 3.44 s
Time = Change in velocity divided (÷) by acceleration.