Posterous theme by Cory Watilo

Questions on Physics

1.   A car travels a distance of 100 metres in 20 seconds. What is the speed of the car?

d = 100m

t =20s

v = d/t

v = 100/20

v = 5m/s

 

2.   A bike travels at a speed of 20 m/s for 20 seconds. How far does the bike travel in this time?

v = 20m/s

t = 20

d= v x t

d =20 x 20

d = 400m

 

3.   A car travels at 30 m/s for 2 minutes. How far has it travelled in this time?

v = 30m/s

t = 120s

d = v x t

d = 30 x 120

d =3600m

4.   A car travels at 30 km/hour. How far, in metres, will the car cover in 90 seconds?

v = 8.3m/s

t = 90s

d = v x t

d = 8.3 x 90

d = 750m