Question

HEY MATE!!!
CLASS 9TH PHYSICS- CHAPTER MOTION
I have a doubt in this question

A racing car has uniform acceleration of -4m/s². What distance will it cover in 10 sec after start.

please answer step by step
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Answer 1

Answer:

200 m

Explanation:

Given:

Acceleration (a) = 4 m/s²

Initial Velocity (u) = 0 m/s   (As every car starts from rest)

Time (t) = 10 seconds

To find:

Distance covered (s)

Method to find:

We can derive the answer by using the 2nd formula of motion.

s = ut + 1/2at²

⇒ s = (0*10) + (1/2 * 4 * 10 * 10)

⇒ s = 0 + 200

⇒ s = 200 m

Hence, the distance covered by the racing car is 200 m. Hope it helps!