The figure shows the velocity of a solar-powered car as a function of time. The driver accelerates from a stop sign, cruises for 20 at a constant speed of 60 , and then brakes to come to a stop 40 after leaving the stop sign.
without units, and without a question, I can't help.
To determine the answer, we need to analyze the figure of the velocity of the solar-powered car as a function of time. However, since we cannot see the figure, I can guide you through the steps required to analyze and interpret the information provided.
Step 1: Identify the different phases of the car's motion
- The driver accelerates from a stop sign
- The car cruises for 20 seconds at a constant speed of 60 mph
- The car brakes to come to a stop 40 seconds after leaving the stop sign
Step 2: Calculate the acceleration phase
- The car starts from rest and accelerates to its constant speed of 60 mph.
- To find the acceleration, we need to determine the rate at which the velocity changes. Since this information is not provided, we cannot calculate the exact acceleration value. However, we know the car takes a certain amount of time to reach a constant speed.
Step 3: Calculate the cruising phase
- The car maintains a constant speed of 60 mph for 20 seconds.
- No additional calculations are required for this phase since the speed is given.
Step 4: Calculate the deceleration phase
- The car brakes to come to a stop 40 seconds after leaving the stop sign.
- To find the deceleration, we would need to determine the rate at which the velocity decreases. However, this information is not provided, so we cannot calculate the exact deceleration value.
Unfortunately, without the actual figure or more specific information, we cannot determine the exact values for acceleration or deceleration. However, by following the steps described above, you can interpret the given information and derive as much relevant information as possible.