1D Kinematics

An object accelerates at a constant rate of 5 m/s2. This means that the object:

• Increases its speed by 5 m/s every second

• Decreases its speed by 5 m/s every second

• Doesn’t move

• Has a positive velocity

• Moves 5 meters every second

Starting from the origin, a person walks 8 km east during first day, and 5 km west the next day. What is the total distance traveled from the initial point in two days?

• 6 km

• 3 km

• 10 km

• 5 km

• 13 km

An object accelerates from rest to

a velocity of 6.2 m/s over a distance of 5 m. What was its acceleration?

A sled with no initial velocity accelerates at a rate of 3.2 m/s2 down a hill. How long does it take the sled to go 15 m to the bottom?

An object accelerates from rest,

with a constant acceleration of 5.2 m/s2, what will its

velocity be after 3 s?

An object is moving with an initial

velocity of 12 m/s. It accelerates at a rate of 1.5 m/s2 over a

distance of 40 m. What is its new velocity?

A ball rolls along the floor with a

constant velocity of 12 m/s. How

far will it have gone after 6 seconds?

A stomp rocket takes 3.1 seconds to reach

its maximum height. What was its initial velocity?

A modern car can develop an acceleration

four times greater than an antique car. If they accelerate over the same

distance, what would be the velocity of the modern car compared to the

antique car?

• half as much

• the same

• twice as much

• four times as much

• a quarter as much

A

vector quantity must have a magnitude and a _______________.

• time

• direction

• velocity

• distance

• speed