position, velocity, acceleration

A car is moving on a highway with a speed of 40 m/s. 5 seconds later the car is moving at 10 m/s in the same direction. The car's acceleration is

-6 m/s2

A car goes from 0 m/s to 10 m/s in 1 second, moving along the positive x-axis. What is its acceleration?

10 m/s2

Ann travels 10 miles east and then goes 3 miles west. What is her distance travel?

13 miles

A car starts from rest and reaches 20 m/s in 5 seconds. The average acceleration of the car is

4.0 m/s^2

A car is moving on a highway with a speed of 10 m/s. 5 seconds later the car is moving at 40 m/s in the same direction. The car's acceleration is

6 m/s^2

Ann travels 10 miles east and then goes 3 miles west. What is her displacement?

7 miles east

What is the difference between distance and displacement?

Displacement is a vector and distance is a scalar

Who throws balls from the leaning Tower of Pisa?

Galileo Galilei

The movie "theory if everything" is about

Stephen Hawking

The slope of the velocity versus time graph is the

acceleration

Acceleration represents the

change in velocity with respect to time

Average speed is calculated by

dividing the distance traveled by the elapsed time

Which quantity is the highway patrol more interested in?

instantaneous speed

In one dimensional motion, the average velocity of an object that moves from one place to another and then back to the original place has which of the following properties?

it can be positive, negative, or zero

The basic unit of length in the metric system is the

meters

A negative distance implies that an object is

on the negative side of the origin

speed is

scalar

In the case of uniform accelerated motion, the graph of velocity versus time is a straight line angled to the time axis. (t or f)

true

velocity is

vector

The slope of the distance traveled versus time graph is the

velocity