Collisions and Motion WebAssign

Will anyone help with WebAssign? I'm having trouble with #3. I don't want to have to complete this WebAssign before 10 PM tonight (that's when my flight leaves). I told Mr. Rose that I would be leaving on Friday night for my trip to South Africa, and luckily I have time to do the WebAssign because last night's flight was cancelled. I should not have to complete my WebAssign before 10 PM tonight. That's much less time than other students are being given. This WebAssign should be due at 11 PM the night before school starts again (after break).