The 100 kg block in the figure takes 5.50 s to reach the floor after being released from rest.
What is the mass of the block on the left?
Please see attachment for diagram.
The following equation can be used to calculate the acceleration that the block experiences:
y = v0 * t + 0.5 * a * t^2.
Since the block starts at rest we know that ...
This solution calculates the acceleration and mass of an object by taking into account gravity and tension.