Question

Suppose you walk across a room of length 9 metre with the velocity of one and half kilometre per hour express this velocity in metre per second and find the time you will take to move across the room suppose you walk across a room of length 9 metre with the velocity of 1 one and half kilometre per hour express this velocity in metre per second and find the time you will take to move across the room across the room

Answer 1

Hello mate!!
$<b><I>$
Displacement=9 m
Velocity= 1.5 km/ hr

$1 \frac{km}{hr} = \frac{1000m}{60 \times 60sec}$
  = (1000/3600)m/s

=5/18 m/s

To convert km/hr to m/s , just multiply the given value of km/hr by 5/18

1.5 km/hr = 1.5×5/18 = 0.4166 m/s

velocity=displacement/Time

Time=Displacement/velocity
       =9/0.4166
       =21.603 sec

Answer 2

Answer:

Hope it helps you

Explanation: