Speed
Distance
Time
Graphs
100
If a cart travelled 20 meters in 10 seconds, how fast is the cart going?
s = d/t
s = 20/10
s = 2 m/s
100
If a cart is travelling at 10 m/s for 2 seconds. How far has the cart gone?
d = s x t
d = 10 x 2
d = 20 m
100
If a cart was travelling 5 m/s, how long would it take for the cart to travel 20 meters?
t = d/s = 20/5 = 4 seconds
100
How far has the cart gone after 40 s?
300 m
200
A car travelled 25 kilometers in 1.5 hours. How fast is it going in km/h?
s = d/t
s = 25/1.5
s = 16.67 km/h
200
A bus is travelling at 30 km/h, for 0.25 hours. How far has the bus gone over the journey?
d = s x t
d = 30 x 0.25
d = 7.5 km
200
If a tram was travelling at 60 km/h, how long would it take to travel 22 km? (round to 2 decimal places)
t = 22/60 = 0.37 hours
t = 22 minutes
200
How long does it take for the toy car to travel 20 m?
3 seconds
300
A rocket travelled 500,000 km in 20 minutes. What is the speed in km/min?
s = d/t
s = 500,000/20
s = 25 000 km/min
300
A hang glider was travelling for 5 minutes at 600 m/min. How far did the glider travel in km?
d = s x t
d = 600 x 5 = 3000 m
d = 3 km
300
A throwing axe was travelling at 20 m/s. How many minutes would it take to travel 60 meters?
t = 60/20 = 3 seconds
t (min) 3/60 = 0.05 minutes
300
What speed is Car A going?
Slope = rise/run = d/t = 40/10 = 4 m/s
400
A baby crawled 4 meters in 30 seconds. What is the speed in meters per minute?
30 seconds/60 seconds/min = 0.5 minutes
s = d/t
s = 4/0.5
s = 8 meters/min
400
A bullet was fired at 2 km/s. If the bullet hit a target after 3 seconds. How far away was the target in meters?
d = s x t
d = 2 x 3 = 6 km
d = 6000 m
400
How many hours would it take for a luge to travel 1800 m travelling at 300 km/h.
1800 m = 1.8 km
t = 1.8/300 = 0.006 hours
t = 0.36 minutes = 21.6 seconds
400
When section is the cart going the fastest?
AB - fastest - steepest slope
500
A horse galloped 3200 m in 2.35 mins. What is its speed in km/h?
3200 m (/1000) => 3.2 km
2.35 mins (/60) => 0.4 hrs
s = d/t = 3.2/0.4
s = 8 km/h (or close enough to it)
500
A bowling ball was rolled down a hill and reached a speed of 40 m/s. How far would the ball travel after 3 mins of rolling.
3 mins = 180 s
d = s x t
d = 40 x 180 d = 7200 m
500
The distance from the Sun to Pluto is 5.9 x 109 km. If light travels at 3 x 108 m/s, how long would it take for light to travel from the Sun to Pluto?
t = d/s = (5.9x1012 m)/(3 x 108 m/s)
t = 1.9667 x 104 s
t = 328 minutes
t = 5.24 hours (i.e. from Pluto, you see an image of the sun 5.24 hours in the past)
500
Calculate the speed CD
s = (500 - 200)/(60-30)= 300/30 = 10 m/s