Question

if a car travels 50 km per hour what would be its speed in SI unit?


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Answer 1

Answer:

125m/9s

Step-by-step explanation:

si unit of speed = m/s

here the units are in =km/hr

which Is equal to=

$\frac{1000m}{60 \times 60s} = \frac{5m}{18s}$

so 1km/hr=5m/18s

so 50hr=5m/18s×50=125m/9s

so speed in si unit =125m/9s

Answer 2

Answer:

to complete 1km distance with speed =50kmhr it tkes time t

1

=

50

1

s

To complete 1km distance with speed =40kmhr it tkes time t

1

=

40

1

s

Average speed=

(1/50)+(1/40)

1+1

=44.44m/s