Speed= (4.92-2.45) 2.47 m/s
Distance= ?
You didn't mention about the distance?
Total distance travelled by the car is 'd'
<span>distance trveled before the brakes were applied = v_o * t </span>
<span>distance travld with brakes = d - v_o*t </span>
<span>applying the formula: v^2 - u^2 = -2 a * s </span>
<span>=> 0 - v_o^2 = -2 * a_x * (d- v_o*t) </span>
<span>=> a_x = (v_o^2)/ ( 2 (d-v_o*t)</span>
It must be either speeding up, or slowing down, or turning. There are no other possibilities.
it's either the first or second choice
