Question

Alex hope in her parked car, turns the key, and slams on the gas, producing an acceleration of 4.8m/s2. If she does this for 4,4 seconds how far will she have traveled

Answer 1

Answer:

She has travelled 46.46 meters

Explanation:

Step 1: Data given

The car starts from rest so v0 = 0 m/s

Acceleration a = 4.8 m/s²

Time travelled = 4.4 seconds

Step 2: Calculate the distance

Since this is an acceleration we will use the formula X = 1/2 * at² +v0t + x0

with X = the total distance travelled

with x0 = the start point ( in this case it's 0)

with a = the acceleration ( in this case 4.8 m/s²)

with v0 = the initial speed ( in this case 0 m/s)

with t= the time travelled (in this case 4.4s)

X = 1/2 * 4.8 m/s² * (4.4s)² + 0*4.4s + 0

X = 1/2 * 4.8 m/s² * (4.4s)²

X = 46.46 m

She has travelled 46.46 meters