Question

a certain car has an acceleration of 2.4m/^2 assume that its acceleration remains constant staying from rest how long does the car require to reach a velocity of 90km/hr how far does it travel while reaching that velocity​

Answer 1

130.24m

Step-by-step explanation:

According to the question ,

• Acceleration (a) = 2.4m/s²
• Initial velocity (u) = 0m/s
• Final velocity (v) = 90km/hr = 25m/s
• Displacement = ?

Using the third equation of motion namely ,

`\twoheadrightarrow` 2as = v² - u²

`\twoheadrightarrow` 2(2.4m/s²) * s = (25m/s)² - 0²

`\twoheadrightarrow` s = 625m²s-²/2*2.4 m/s² .

`\twoheadrightarrow` s = 130.24 m

Hence the distance travelled during this interval is 130.24 m.