PROBLEM 2 A driver is driving at an initial speed of 42 kph. At the back of his truck is a mounted container that is full of water. The container is 6 m long, 2 m wide, and 2 m high. The water container is covered with a rubber tarpaulin. After 20 minutes of driving at constant speed, three things happen: (1) The rope of the tarpaulin at the rear end of his truck unravels, causing the back portion of the water surface to be exposed to the atmosphere. He is unaware of this. (2) He sees a van ahead on the road. Ever so inspired by Fast and Furious, he overtakes the van, and at 3 seconds, increases his speed to 75 kph. (3) Upon doing so, the water in his tank partially spills. Poor guy, he is oblivious to the mess, but let's leave it to him to solve that. As for you, dear reader, find the volume of the water left in his tank, in liters.

PROBLEM 2 A driver is driving at an initial speed of 42 kph. At the back of his truck is a mounted container that is full of water. The container is 6 m long, 2 m wide, and 2 m high. The water container is covered with a rubber tarpaulin. After 20 minutes of driving at constant speed, three things happen: (1) The rope of the tarpaulin at the rear end of his truck unravels, causing the back portion of the water surface to be exposed to the atmosphere. He is unaware of this. (2) He sees a van ahead on the road. Ever so inspired by Fast and Furious, he overtakes the van, and at 3 seconds, increases his speed to 75 kph. (3) Upon doing so, the water in his tank partially spills. Poor guy, he is oblivious to the mess, but let's leave it to him to solve that. As for you, dear reader, find the volume of the water left in his tank, in liters.