Question

Ben Rushin is waiting at a stoplight. When it finally turns green, Ben accelerated from rest at a rate of a $6.00m/s^2$ for a time of $4.10$ seconds. Determine the displacement of Ben's car during this time period.

• A. $50.4m$
• B. $50m$
• C. $40.4m$
• D. $80.4m$

Answer 1

The correct option is A $50.4m$

Here, acceleration of Ben's car is $a=6m/s^2$

Time taken $t=4.10s$ and initial velocity is $u=0m/s$

Let $S$ be the required displacement.

Using formula $S=ut+a{t}^2/2$

$\therefore$ $S=0\left(4.10\right)+0.5\left(6\right)(4.10{)}^2=50.4m$