Please solve and show work

Name 3.5 How Can We Detect and Measure Changing Velocity? a) If a car starts from rest and accelerates at a constant rate of 5 mph/s (5 miles per hour each second), how fast in miles per hour is the car traveling after 10 seconds? b) A truck traveling at 40 km/hr accelerates at a constant rate of 3.5 km/hr/s. How fast is the truck traveling after 10 seconds? c) A truck traveling at 40 km/hr accelerates at a constant rate of 3.5 km/hr/s. How fast is the truck traveling after 10 seconds? d) Which of the following could cause a car to accelerate? A gas pedal? A brake pedal? A steering wheel? Explain why or why not each causes an acceleration. e) Group discussion question: A speedometer indicates a car's speed. Design a device that indicates whether a car is accelerating. Explain your design and how it works