Answer:
1875 J of energy is converted to heat.
Step-by-step explanation:
Given that,
The combined mass of Andrea and the bike is 50 kg
Initial speed of Andrea's bicycle, u = 10 m/s
Final speed of Andrea's bicycle, v = 5 m/s
The energy converted to heat can be calculated using the work-energy theorem as follows :
So, 1875 J of energy is converted to heat.