Question

a car moves a distance of 200m It cover the first half of the distance at speed v the average speed is 48km/h find the value of v ​

Answer 1

Answer:

60 km/h

Explanation:

given ;

distance = 200m

average speed = 48km/h

first half distance speed = v

second half distance speed = .....?

SOLUTION :

Formula = average speed = d/(100/40 + 100/v)

48 = 200/(100/40 + 100/v)

( TAKING OUT 100 COMMON FROM THE DENAMINATOR AND SEND IT TO 48 )

4800 = 200/(1/40+1/V)

200/4800 = 1/40+1/V

1/24 = 1/40+1/V

(ON SOLVING THIS WE GET)

V = 60km/h

Answer 2

Answer:

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