Final answer:
The change in momentum of an object can be calculated using the formula Δp = F^t. To find the change in momentum of the apple between 0 ms and 20 ms, you need to determine the area under the curve of the net force versus time graph during that time interval.
Step-by-step explanation:
The change in momentum of an object can be calculated using the formula:
Δp = F▵t
where Δp is the change in momentum, F is the net force acting on the object, and t is the time interval. To find the change in momentum of the apple between 0 ms and 20 ms, you need to determine the area under the curve of the net force versus time graph during that time interval. Since the graph is not provided, we cannot provide a specific numerical answer without the graph.