Question

Find the magnitude of constant acceleration (in $m/s^2$) needed to allow a car to accelerate in a straight line from a speed of zero to a speed of $30m/s$ in $5s$ :

• A. $7$
• B. $6$
• C. $5$
• D. $4$

Answer 1

The correct option is B $6$

Here acceleration , $a=\frac{dv}{dt}=\frac{30-0}{5}=6m/s^2$