Jason while driving on Kukum highway at 70 m.s – 1 seeing the traffic light turn red, he applies the brake and comes to rest in a time of 2 seconds. What is his deceleration?
V = Vo + a*t.
0 = 70 + a*2, "a" will be negative.
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To find Jason's deceleration, we can use the formula:
acceleration = (final velocity - initial velocity) / time
Here, Jason's initial velocity is 70 m/s, and he comes to rest, so his final velocity is 0 m/s. The time taken to come to rest is given as 2 seconds.
So, we can substitute these values into the formula:
acceleration = (0 m/s - 70 m/s) / 2 s
Simplifying the equation:
acceleration = -70 m/s / 2 s
acceleration = -35 m/s²
Therefore, Jason's deceleration is -35 m/s². The negative sign indicates that the deceleration is in the opposite direction of the initial velocity.