Question

a car starts from rest and moves through a distance S0 with constant acceleration f,after which it continues moving with uniform velocity for time t and then decelerates at the rate of f/2 to come to rest,if total distance travelled is 10S0,then
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Answer 1

Answer:

If t

2

be the time for which the car decelerates at the rate f/2 to come rest, the distance traveled in time t

2

is given by,

0

2

−v

1

2

=2(−f/2)s

3

(using formula v

2

−u

2

=2as)

or s

3

=(ft

1

)

2

/f=ft

1

2

...(3)

using (1), s

3

=2s

1

=2s