Question

a car accelerates at constant rate of 2.0m/s. a)what does it mean .b)what will be the velocity of the car in part a after 1 minute if it starts from rest​

Answer 1

Answer:

hey

Explanation:

Let v,t  

1

​  

,t  

2

​  

 be the maximum velocity attained, time for which car accelerated and the time for which car retarded respectively

⇒t  

1

​  

=(v−u)/a=(v−0)/2=v/2

⇒t  

2

​  

=(v−u)/a=(0−v)/(−4)=v/4

Now it is given that,  

⇒t  

1

​  

+t  

2

​  

=3

⇒v/2+v/4=3

⇒v=4m/s

hope it helps

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