Question

Zamień 1a)25m/s= km/h b)1000m/s km/h 2a)72km/h i 144 km/h == m/s POZDRO;)))

Answer 1

1a

 

 

1b

 

 

2a

 

2b

Answer 2

1 km = 1000 m

1 m = 0,001 km

1 h = 3600 s

1 s = 1/3600 h

 

1.

a)

25 m/s = 25*0,001km/(1/3600)s = 90 km/h

b)

1000 m/s = 1km/(1/3600)s = 3600 km/h

 

2.

a)

72 km/h = 72*1000m/3600s = 20 m/s

b)

144 km/h = 144*1000m/3600s = 40 m/s