Question

A car, moving with an initial velocity of 10 m/s, has a constant acceleration of 4 m/s2. After 5 seconds, find (b) the displacement of the car in meters.

Answer 1

$\bigstar$ Correct Question:

• A car is moving with an initial velocity of 10 m/s, has a constant acceleration of 4 m/s². After 5 seconds, find the displacement of the car in meters.

$\bigstar$To find:

• The displacement of the car(in metres) after 5 seconds.

$\bigstar$Given:

• Initial velocity (u) = 10m/s
• Acceleration (a) = 4m/s²
• Time (t) = 5sec

$\bigstar$ Solution:

Here, we can use the second equation of motion to get the display.

The second equation of motion :

$\rightarrow$ s = ut + ½ at²

So by substituting the Values we get,

s = ut + ½ at²

$\implies$ s = (10)(5) + ½ (4)(5)²

$\implies$ s = 50 + 2 (25)

$\implies$ s = 50 + 50

$\implies$ s = 100m

$\bigstar$Answer:

• Therefore, the displacement of the car in 5 sec is 100m.