# A car starts its motion from rest and accelerates with an acceleration of 3m/s2 speed reaches to 20.0m/sec. Find time interval during this m

Question

A car starts its motion from rest and accelerates with an acceleration of 3m/s2 speed reaches to 20.0m/sec. Find time interval during this motion.

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1 year 2021-09-04T05:22:11+00:00 1 Answers 14 views 0

The time interval is  $$t = 6.667 \ s$$

Explanation:

From the question we are told that

The acceleration of the car is  $$a = 3 m/s^2$$

The velocity of the car is  $$v= 20.0 \ m/s$$

The final velocity of the car can be mathematically represented as

$$v =u + at$$

Now since the car start from rest  u = 0 So

$$v = 0 + at$$

$$v = at$$

substituting values

$$20 = 3 t$$

$$t = \frac{20}{3}$$

$$t = 6.667 \ s$$