Question

PLEASE SOLVE IT ?
ITS URGENT ?

Answer 1

HEY MATE !!

YOUR ANSWER !!

(i)

First two hours :

$acceleration = \frac{v - u}{t}$

For first two hours :

v = 40 km/hr

u = 0 km/hr

t = 2hrs

$acceleration = \frac{40 - 0}{2}$

acceleration = 20 km/hr²

Next Two Hours :

0 because there is not any increase in speed.

Last Two Hours :

v = 0

u = 40 km/hr

t = 2hrs

$acceleration = \frac{0 - 40}{2}$

acceleration = -20 km/hr²

(ii)

Total distance covered by car = Area of Trapazium ABDE

Total Distance = (AE + BD) × BF/2

Total Distance = (8 + 4) × 40/2

Total Distance = 12 × 20 = 240 km

(iii)

Average Speed of Car = Distance / Time = 240 / 8 = 30 km/hr

HOPE IT HELPS !!

MARK BRAINLIEST !!

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