Which is positive if the velocity increases?
Average speed
Speed
Mass
Acceleration
A person crosses a 600 m long street in 5 minutes. What is his speed in km per hour?
3.6 km/hr
7.2 km/hr
8.4 km/hr
10 km/hr
A car moved 80 km to the South. What is its displacement?
20 km South.
50 km East.
80 km South.
160 km North.
Calculate the acceleration of an object which goes from rest to 30 m/s in 2s.
25 m/s2
28 m/s2
15 m/s2
2.8 m/s2
km/h2 is a unit of :
Velocity
Distance
What is the average velocity of a car that moved 40 km East and 80 km West in 2 hours?
5 km/h
10 km/h
15 km/h
20 km/h
If a car increases its velocity from zero to 60 m/s in 10 s, its acceleration is
600 m/s2
10 m/s
6 m/s2
none of these
What is the distance covered by a car in 5h if it is moving with a speed of 35 km/h?
175 km
150 km
7 km
1750 km
What connected to a datalogger and computer enables a distance - time graph to be plotted directly?
Motion sensor
Tickertap timer
Both A and B
None of these
What is the difference between velocity and speed?
velocity is a vector quantity and speed is a scalar quantity.
Speed is a vector quantity and velocity is a scalar quantity.
Velocity and speed are vector quantities.
Velocity and speed are scalar quantities.
