2. 1D Motion / Kinematics

A car moving south speeds up from $10\text{m/s}$ to $40\text{m/s}$ in $15\text{s}$. What is the car's acceleration?

The position of an object is given by 𝓍 = At + Bt², where 𝓍 is in meters and t is in seconds. What is the acceleration as a function of time?

The $2 \mathrm{second}$ rule applies to vehicles traveling under which of the following conditions?

A car maintains a constant velocity of $120\mathrm{km}/h$ for $10s$. What is the acceleration of the car during this time?

At this instant, the particle is speeding up and curving upward. What is the direction of its acceleration?

The average acceleration vector must point in the same direction as which of the following vectors?

The takeoff speed for an Airbus A320 jetliner is 80 m/s. Velocity data measured during takeoff are as shown. Is the jetliner's acceleration constant during takeoff? Explain.

When an object speeds up in the direction of its velocity ($v$), what type of acceleration does it experience?

A car traveling at an initial velocity of $v=20m/s$ comes to a stop in $t=4s$ after the brakes are applied. What is the magnitude of the car's acceleration $a_x$ during this time?

If blood is accelerated from rest to a speed of $30.0cm/s$ in $0.200s$, what is the magnitude of its acceleration?

Which of the following best describes the physical quantity defined as the rate at which velocity changes with respect to time? (i.e., $\frac{\partial v}{\partial t}$)

If an object starts from rest and moves with constant acceleration $a$, what is its velocity $v$ after time $t$?

A truck increases its velocity from $10m/s$ to $30m/s$ in $5s$. What is the acceleration of the truck?