Question

The velocity-displacement for a jet plane on a straight runway is shown in. Determine the speed and acceleration of the jet plane at $s=150m$

• A. $3m/s^2$
• B. $5m/s^2$
• C. $9m/s^2$
• D. $43m/s^2$

Answer 1

The correct option is B $5m/s^2$

The velocity -displacement for a jet plane on a straiht run way is shown

Now, determination of speed of acceleration of jet plane at $s=150m$

$a=\frac{\Delta V}{\Delta t}$

From the fraph it is clear that,

$a=\frac{250-200}{60-50}=\frac{50}{10}=5m/s^2$