Question

1) a car moves 108 km in 6 hrs. find its speed m/s.
2) a bus travels 100 m in 5 secs. find its speed in km/hr
3)a body covers 60 m in 12 m/s. find the time taken
4)a train moves 60 km in 2 hours, 40 km in 1 hour and 100 km in 4 hours. find its average speed?
5)convert 365 days into seconds.

plz answer these...plzz!!

Answer 1

1. Given

Distance=108km

Time=6 hr

Speed= distance/time

Speed=108/6

Speed=108×1000/6×3600

Speed=108000/21600

Speed=5m/s

2.speed=distance/time

Speed=100/5

100×1/1000÷5×2/3600

1/10÷1/360

1/10×360

Speed=36m/s

3. Given speed=12m/s

Distance=60m

Speed=distance÷time

12=60/time

Time=60/12

Time=5seconds