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A car travels at a speed of 60 km/h. What is its speed in m/s?
1.67 m/s
16.67 m/s
166.7 m/s
0.167 m/s
A car travels 20 km east and then 10 km west in 2 hours. What is its average speed?
10 km/h
15 km/h
20 km/h
5 km/h
An object moves with a constant speed in a circular path. Is its velocity constant?
Yes
No
Depends on the radius
Depends on the speed
A car travels 60 km in 2 hours and then 40 km in 1 hour. What is its average speed for the entire journey?
40 km/hour
33.33 km/hour
60 km/hour
50 km/hour
A car travels 40 km east in 1 hour and then 30 km north in the next 0.5 hours. What is its average speed?
40 km/h
30 km/h
50 km/h
60 km/h
A body covers one-third of its journey with speed 'u', the next one-third with speed 'v', and the last one-third with speed 'w'. What is its average speed for the entire journey?
(u + v + w)/3
3uvw/(uv + vw + wu)
uvw/(u + v + w)
(u + v + w)
A car travels from point A to point B with a speed of 40 km/h and returns from B to A with a speed of 60 km/h. What is its average speed for the entire journey?
50 km/h
48 km/h
40 km/h
60 km/h
A cyclist is traveling at a constant speed of 5 m/s. What distance does the cyclist cover every second?
1 m
2.5 m
5 m
10 m
A position-time graph for a particle moving along the x-axis is shown. At which point is the particle's speed the greatest?
A
B
C
D
If the speed of an object is doubled, its kinetic energy will:
Double
Increase by a factor of 4
Halve
Remain the same
