Question

the car with an initial speed of 3m/s accelerates at a rate of 2m/s² for 10 secs what if the speed of the car after 10 secs​

Answer 1

Explanation:

ANSWER

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

Answer 2

speed formula

valosity formula

get ans