Terminal Velocity during Free Fall

Very Hard Physics Kinematics And Dynamics

A 2 kg block is released from rest at a height of 10 m above the ground level. As it falls freely under the influence of gravity, it encounters a viscous medium, which opposes its motion. The block reaches terminal velocity after falling for a certain period of time. Assume the acceleration due to gravity is 9.81 m/s² and that the drag force experienced by the block at terminal velocity is equal to its weight.

Given these conditions, which of the following statements is correct regarding the block's motion during its fall?

The block accelerates uniformly until it reaches terminal velocity.

The block experiences constant velocity throughout its fall.

The block initially accelerates and then moves with decreasing acceleration until it stops.

The block falls with constant acceleration until it comes to a stop.

Hint

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