Question

Q.18 PLZ GIVE THE SOLUTION.

Answer 1

When the brakes are applied, the tyres apply a force on the road as described by the formula F=ma

F=ma

. Assuming the deceleration is constant, you can find it using

vf−vit

vf−vit

Where vf

vf

is the final velocity, vi

vi

is initial velocity, and t

t

is time.

Once you have the acceleration, a

a

, you can find the force of the brakes and then use that to find the deceleration of the 3200 kg lorry. With that new a

a

, you can then find the time taken to slow to v=0

v=0

using the formula

v=u+at

v=u+at

Where u

u

is initial velocity.

ans=36s

Answer 2

Answer:

36s is the answer of this question.

Hope it helps.

Please mark it as brainliest.