Question

F. A car moves at a speed of 40Km/H it is stopped
by applying brapes which produce acceleration of
-0.6m/s2 . How much distance will the veheile
move before coming to stop?​

Answer 1

Explanation:

Since stopping distance, s=

2a

v

2

For case 1, 40=

2a

(40×

18

5

)

2

...............(1)

For case 2, s=

2a

(80×

18

5

)

2

..................(2)

From (1) and (2), s=160m

Answer 2

Please see this attachment....