Please help me solve these questions using velocity and acceleration formulas. Please try to give the answer written on a notebook or an editor showing the work. It is easier for me to understand that way. You can use a format I'll provide below the questions. Thank you, I appreciate your help!

3. A sports car's velocity is shown in the graph 5W5} e 15 Velocity-Time below. (8 ma rks} a. How fast is it traveling at the 5 3 mark? b. What is the acceleration at the 5 5 mark? it. Estimate the acceleration at the 15 5 mark. Show your work. :1. During which intervals oi time, did the car have a negative acceleration? 4. Using the acceleration-time graph below, sketch the corresponding velocity- time graph. Show your work. (6 marks)