Question

a car moves with a speed og 40 km/hr for 15 minutes and then with a speed of 60 km/hr for the next 15 munutes the total distance covered by the car is​

Answer 1

Answer:

taking speed1=40km/hr

time1=15min

distance=speed/time

putting the values

distance1=40/15=2.66km

taking speed2=60km/hr

time2=15min

distance=speed/time

putting the values

distance2=60/15=4km

total distance=distance1+distance2

=2.66+4=6.66km

Answer 2

Answer:

case 1 -

speed=40km/h =100/9 m/s

time=15 min=900s

distance= s × t

= 100/9 × 900

= 200m

case 2-

speed=60km/h=50/3 ms^-1

time=15 min=900 s

distance= s × t

=50/3 × 900s

=1500m

Total distance = 200m + 1500m

= 1700m