2. 1D Motion / Kinematics

An object initially at rest reaches a velocity of $20m/s$ in $4s$. What is the magnitude of the acceleration?

An electric vehicle starts from rest and accelerates at a constant rate of $a$ for a time $t$. What is the final speed of the vehicle after time $t$?

In the context of motion, what is another term commonly used for $\mathrm{negative} \mathrm{acceleration}$?

Which statement is true about an object with an acceleration of $6\frac{m}{s^2}$?

A car starts from rest and accelerates uniformly to a speed of $60 \mathrm{mph}$ in $10 s$. What is the required constant acceleration in SI units $m/s^2$?

Which of the following describes an object with $a=0$?

If the change in velocity of an object ($\mathrm{\Delta v}$) increases while the time interval ($\mathrm{\Delta t}$) remains constant, what happens to the acceleration ($a$) of the object?

A cheetah can accelerate from rest to a speed of $30.0m/s$ in $7.00s$. What is its acceleration?

A car accelerates from an initial speed of $20\text{m/s}$ to a final speed of $26\text{m/s}$ at a constant acceleration of $1.4\text{m/s}{2}^{}$. How much time does it take for the car to reach this final speed?

In the context of motion in one dimension, is it possible for an object to have a constant $v$ while its $a$ is not $0$?

Which of the following is the correct SI unit for acceleration in kinematics?

Which of the following best describes the difference between $v$ (velocity) and $a$ (acceleration)?

Acceleration is a vector. What does that mean?$a$ is a $\overrightarrow{a}$.

A car travels in a straight line east, changing its speed at different times. Is it possible for the car to have an acceleration directed $\mathrm{west}$ during this motion?

Which of the following best describes the physical quantity defined as the rate at which $v$ changes over $t$?