## Question

### Solution

Correct option is

20 ms–1

Let t1 be the time during which the car has an acceleration a1 = 5 ms–2and t2 be the time during which the car has a deceleration a2 = –10 ms–2. Since the car starts from rest, the maximum speed attained by the car . For time interval, this v is the initial speed and the final speed is zero. Therefore, Thus,   = 2 .

Now, Therefore

t1 = 4 s and t1 = 2 s.

Also  = 20 ms–1.

#### SIMILAR QUESTIONS

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