A tornado has been spotted in your area. The tornado warning said that the funnel cloud is traveling east at 40 miles per hour. The warning has given us the tornado's
Group of answer choices
acceleration
instantaneous speed
average speed
velocity
The correct answer is velocity. Velocity is a vector quantity that includes both the speed of an object and its direction of motion. In this situation, the tornado warning is providing the information that the tornado is moving east at 40 miles per hour, indicating its velocity.
The car salesman tells you that the car can go from a stopped position to 60 miles per hour in 6 seconds. He is giving you the car's rate of
Group of answer choices
acceleration
distance
instantaneous speed
velocity
The correct answer is acceleration. Acceleration is the rate at which an object changes its velocity over time. In this situation, the car salesman is providing information about how quickly the car can increase its speed from a stopped position to 60 miles per hour in 6 seconds. This indicates the car's rate of acceleration.
If we decrease the distance traveled over the same period of time, this will
Group of answer choices
have no effect on speed or velocity
increase the speed
decrease the speed
increase the velocity