State the property of the graph in Fig. 2.2 that indicates the block has constant acceleration.
Use Fig. 2.2 to determine the height of the block above the ground when the string breaks at time $t = 0$.
The block’s weight is $0.86\,\text{N}$. Calculate the change in gravitational potential energy of the block from time $t = 0$ to time $t = 0.90\,\text{s}$.
On Fig. 2.3, sketch a graph to show how the distance moved by the block varies with time $t$ from $t = 0$ to $t = 0.20\,\text{s}$. No numerical distance values are needed.
A block with a larger mass is now let go from the same height with the same upward velocity. Air resistance is still negligible. State and explain the effect, if any, of the larger mass on the speed at which the block reaches the ground.