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A car falls from a mountain road and comes to the ground in 0.8 seconds. (Let's say g = 10 ms-2). What will be its speed when it hits the ground?

A car falls from a mountain road and comes to the ground in 0.8 seconds. (Let's say g = 10 ms-2). What will be its speed when it hits the ground? Correct Answer 8 ms<sup>-1</sup>

The correct answer is 8 ms-1

Key Points

  • Solution:
    • Here, u = 0 , t = 0.8 s , g = 10 m / s 2.
    • v = u + g t = 0 + 10 × 0.8
    • 8
    • 8 ms-1 is the speed when it hits the ground.

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